diff --git a/Pipfile.lock b/Pipfile.lock
index edd8035..75acd5c 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -30,14 +30,6 @@
             ],
             "version": "==1.4.3"
         },
-        "appnope": {
-            "hashes": [
-                "sha256:5b26757dc6f79a3b7dc9fab95359328d5747fcb2409d331ea66d0272b90ab2a0",
-                "sha256:8b995ffe925347a2138d7ac0fe77155e4311a0ea6d6da4f5128fe4b3cbe5ed71"
-            ],
-            "markers": "sys_platform == 'darwin'",
-            "version": "==0.1.0"
-        },
         "aspy.yaml": {
             "hashes": [
                 "sha256:463372c043f70160a9ec950c3f1e4c3a82db5fca01d334b6bc89c7164d744bdc",
@@ -47,10 +39,10 @@
         },
         "astroid": {
             "hashes": [
-                "sha256:6560e1e1749f68c64a4b5dee4e091fce798d2f0d84ebe638cf0e0585a343acf4",
-                "sha256:b65db1bbaac9f9f4d190199bb8680af6f6f84fd3769a5ea883df8a91fe68b4c4"
+                "sha256:71ea07f44df9568a75d0f354c49143a4575d90645e9fead6dfb52c26a85ed13a",
+                "sha256:840947ebfa8b58f318d42301cf8c0a20fd794a33b61cc4638e28e9e61ba32f42"
             ],
-            "version": "==2.2.5"
+            "version": "==2.3.3"
         },
         "atomicwrites": {
             "hashes": [
@@ -61,17 +53,17 @@
         },
         "attrs": {
             "hashes": [
-                "sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79",
-                "sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399"
+                "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
+                "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"
             ],
-            "version": "==19.1.0"
+            "version": "==19.3.0"
         },
         "babel": {
             "hashes": [
-                "sha256:af92e6106cb7c55286b25b38ad7695f8b4efb36a90ba483d7f7a6628c46158ab",
-                "sha256:e86135ae101e31e2c8ec20a4e0c5220f4eed12487d5cf3f78be7e98d3a57fc28"
+                "sha256:1aac2ae2d0d8ea368fa90906567f5c08463d98ade155c0c4bfedd6a0f7160e38",
+                "sha256:d670ea0b10f8b723672d3a6abeb87b565b244da220d76b4dba1b66269ec152d4"
             ],
-            "version": "==2.7.0"
+            "version": "==2.8.0"
         },
         "backcall": {
             "hashes": [
@@ -90,24 +82,25 @@
         },
         "bleach": {
             "hashes": [
-                "sha256:213336e49e102af26d9cde77dd2d0397afabc5a6bf2fed985dc35b5d1e285a16",
-                "sha256:3fdf7f77adcf649c9911387df51254b813185e32b2c6619f690b593a617e19fa"
+                "sha256:2ffa40dfa80b141ff58eee538bce0d2a09c7d456018d00f7a2cb0ebf967c524d",
+                "sha256:f0b1ee0315062e60afa6b7cc39b1c3718b591e1d552a8841044dc49a68465659"
             ],
-            "version": "==3.1.0"
+            "index": "pypi",
+            "version": "==3.1.2"
         },
         "certifi": {
             "hashes": [
-                "sha256:046832c04d4e752f37383b628bc601a7ea7211496b4638f6514d0e5b9acc4939",
-                "sha256:945e3ba63a0b9f577b1395204e13c3a231f9bc0223888be653286534e5873695"
+                "sha256:017c25db2a153ce562900032d5bc68e9f191e44e9a0f762f373977de9df1fbb3",
+                "sha256:25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f"
             ],
-            "version": "==2019.6.16"
+            "version": "==2019.11.28"
         },
         "cfgv": {
             "hashes": [
-                "sha256:edb387943b665bf9c434f717bf630fa78aecd53d5900d2e05da6ad6048553144",
-                "sha256:fbd93c9ab0a523bf7daec408f3be2ed99a980e20b2d19b50fc184ca6b820d289"
+                "sha256:1ccf53320421aeeb915275a196e23b3b8ae87dea8ac6698b1638001d4a486d53",
+                "sha256:c8e8f552ffcc6194f4e18dd4f68d9aef0c0d58ae7e7be8c82bee3c5e9edfa513"
             ],
-            "version": "==2.0.1"
+            "version": "==3.1.0"
         },
         "chardet": {
             "hashes": [
@@ -118,17 +111,17 @@
         },
         "click": {
             "hashes": [
-                "sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13",
-                "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"
+                "sha256:8a18b4ea89d8820c5d0c7da8a64b2c324b4dabb695804dbfea19b9be9d88c0cc",
+                "sha256:e345d143d80bf5ee7534056164e5e112ea5e22716bbb1ce727941f4c8b471b9a"
             ],
-            "version": "==7.0"
+            "version": "==7.1.1"
         },
         "commonmark": {
             "hashes": [
-                "sha256:14c3df31e8c9c463377e287b2a1eefaa6019ab97b22dad36e2f32be59d61d68d",
-                "sha256:867fc5db078ede373ab811e16b6789e9d033b15ccd7296f370ca52d1ee792ce0"
+                "sha256:452f9dc859be7f06631ddcb328b6919c67984aca654e5fefb3914d54691aed60",
+                "sha256:da2f38c92590f83de410ba1a3cbceafbc74fee9def35f9251ba9a971d6d66fd9"
             ],
-            "version": "==0.9.0"
+            "version": "==0.9.1"
         },
         "datetime": {
             "hashes": [
@@ -140,10 +133,10 @@
         },
         "decorator": {
             "hashes": [
-                "sha256:86156361c50488b84a3f148056ea716ca587df2f0de1d34750d35c21312725de",
-                "sha256:f069f3a01830ca754ba5258fde2278454a0b5b79e0d7f5c13b3b97e57d4acff6"
+                "sha256:41fa54c2a0cc4ba648be4fd43cff00aedf5b9465c9bf18d64325bc225f08f760",
+                "sha256:e3a62f0520172440ca0dcc823749319382e377f37f140a0b99ef45fecb84bfe7"
             ],
-            "version": "==4.4.0"
+            "version": "==4.4.2"
         },
         "defusedxml": {
             "hashes": [
@@ -152,13 +145,18 @@
             ],
             "version": "==0.6.0"
         },
+        "distlib": {
+            "hashes": [
+                "sha256:2e166e231a26b36d6dfe35a48c4464346620f8645ed0ace01ee31822b288de21"
+            ],
+            "version": "==0.3.0"
+        },
         "docutils": {
             "hashes": [
-                "sha256:6c4f696463b79f1fb8ba0c594b63840ebd41f059e92b31957c46b74a4599b6d0",
-                "sha256:9e4d7ecfc600058e07ba661411a2b7de2fd0fafa17d1a7f7361cd47b1175c827",
-                "sha256:a2aeea129088da402665e92e0b25b04b073c04b2dce4ab65caaa38b7ce2e1a99"
+                "sha256:0c5b78adfbf7762415433f5515cd5c9e762339e23369dbe8000d84a4bf4ab3af",
+                "sha256:c2de3a60e9e7d07be26b7f2b00ca0309c207e06c100f9cc2a94931fc75a478fc"
             ],
-            "version": "==0.15.2"
+            "version": "==0.16"
         },
         "entrypoints": {
             "hashes": [
@@ -167,6 +165,13 @@
             ],
             "version": "==0.3"
         },
+        "filelock": {
+            "hashes": [
+                "sha256:18d82244ee114f543149c66a6e0c14e9c4f8a1044b5cdaadd0f82159d6a6ff59",
+                "sha256:929b7d63ec5b7d6b71b0fa5ac14e030b3f70b75747cef1b10da9b879fef15836"
+            ],
+            "version": "==3.0.12"
+        },
         "flake8": {
             "hashes": [
                 "sha256:19241c1cbc971b9962473e4438a2ca19749a7dd002dd1a946eaba171b4114548",
@@ -175,12 +180,6 @@
             "index": "pypi",
             "version": "==3.7.8"
         },
-        "future": {
-            "hashes": [
-                "sha256:67045236dcfd6816dc439556d009594abf643e5eb48992e36beac09c2ca659b8"
-            ],
-            "version": "==0.17.1"
-        },
         "geojson": {
             "hashes": [
                 "sha256:b175e00a76d923d6e7409de0784c147adcdd6e04b311b1d405895a4db3612c9d",
@@ -191,46 +190,46 @@
         },
         "identify": {
             "hashes": [
-                "sha256:0a11379b46d06529795442742a043dc2fa14cd8c995ae81d1febbc5f1c014c87",
-                "sha256:43a5d24ffdb07bc7e21faf68b08e9f526a1f41f0056073f480291539ef961dfd"
+                "sha256:a7577a1f55cee1d21953a5cf11a3c839ab87f5ef909a4cba6cf52ed72b4c6059",
+                "sha256:ab246293e6585a1c6361a505b68d5b501a0409310932b7de2c2ead667b564d89"
             ],
-            "version": "==1.4.5"
+            "version": "==1.4.13"
         },
         "idna": {
             "hashes": [
-                "sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407",
-                "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"
+                "sha256:7588d1c14ae4c77d74036e8c22ff447b26d0fde8f007354fd48a7814db15b7cb",
+                "sha256:a068a21ceac8a4d63dbfd964670474107f541babbd2250d61922f029858365fa"
             ],
-            "version": "==2.8"
+            "version": "==2.9"
         },
         "imagesize": {
             "hashes": [
-                "sha256:3f349de3eb99145973fefb7dbe38554414e5c30abd0c8e4b970a7c9d09f3a1d8",
-                "sha256:f3832918bc3c66617f92e35f5d70729187676313caa60c187eb0f28b8fe5e3b5"
+                "sha256:6965f19a6a2039c7d48bca7dba2473069ff854c36ae6f19d2cde309d998228a1",
+                "sha256:b1f6b5a4eab1f73479a50fb79fcf729514a900c341d8503d62a62dbc4127a2b1"
             ],
-            "version": "==1.1.0"
+            "version": "==1.2.0"
         },
         "importlib-metadata": {
             "hashes": [
-                "sha256:23d3d873e008a513952355379d93cbcab874c58f4f034ff657c7a87422fa64e8",
-                "sha256:80d2de76188eabfbfcf27e6a37342c2827801e59c4cc14b0371c56fed43820e3"
+                "sha256:06f5b3a99029c7134207dd882428a66992a9de2bef7c2b699b5641f9886c3302",
+                "sha256:b97607a1a18a5100839aec1dc26a1ea17ee0d93b20b0f008d80a5a050afb200b"
             ],
-            "version": "==0.19"
+            "markers": "python_version < '3.8'",
+            "version": "==1.5.0"
         },
         "ipykernel": {
             "hashes": [
-                "sha256:167c3ef08450f5e060b76c749905acb0e0fbef9365899377a4a1eae728864383",
-                "sha256:b503913e0b4cce7ed2de965457dfb2edd633e8234161a60e23f2fe2161345d12"
+                "sha256:37c65d2e2da3326e5cf114405df6d47d997b8a3eba99e2cc4b75833bf71a5e18",
+                "sha256:39746b5f7d847a23fae4eac893e63e3d9cc5f8c3a4797fcd3bfa8d1a296ec6ed"
             ],
-            "version": "==5.1.2"
+            "version": "==5.2.0"
         },
         "ipython": {
             "hashes": [
-                "sha256:1d3a1692921e932751bc1a1f7bb96dc38671eeefdc66ed33ee4cbc57e92a410e",
-                "sha256:537cd0176ff6abd06ef3e23f2d0c4c2c8a4d9277b7451544c6cbf56d1c79a83d"
+                "sha256:ca478e52ae1f88da0102360e57e528b92f3ae4316aabac80a2cd7f7ab2efb48a",
+                "sha256:eb8d075de37f678424527b5ef6ea23f7b80240ca031c2dd6de5879d687a65333"
             ],
-            "markers": "python_version >= '3.3'",
-            "version": "==7.7.0"
+            "version": "==7.13.0"
         },
         "ipython-genutils": {
             "hashes": [
@@ -241,10 +240,10 @@
         },
         "ipywidgets": {
             "hashes": [
-                "sha256:13ffeca438e0c0f91ae583dc22f50379b9d6b28390ac7be8b757140e9a771516",
-                "sha256:e945f6e02854a74994c596d9db83444a1850c01648f1574adf144fbbabe05c97"
+                "sha256:87b30e4dfd68a7c4e3c6462eedb95ac7d1a776cc182f87168d960151151de31c",
+                "sha256:9cb5590e583b8ea309a2d8e88fb02e44d054df2a77891f7d3356b0b883b99d3d"
             ],
-            "version": "==7.5.1"
+            "version": "==8.0.0a0"
         },
         "isort": {
             "hashes": [
@@ -255,24 +254,24 @@
         },
         "jedi": {
             "hashes": [
-                "sha256:53c850f1a7d3cfcd306cc513e2450a54bdf5cacd7604b74e42dd1f0758eaaf36",
-                "sha256:e07457174ef7cb2342ff94fa56484fe41cec7ef69b0059f01d3f812379cb6f7c"
+                "sha256:b4f4052551025c6b0b0b193b29a6ff7bdb74c52450631206c262aef9f7159ad2",
+                "sha256:d5c871cb9360b414f981e7072c52c33258d598305280fef91c6cae34739d65d5"
             ],
-            "version": "==0.14.1"
+            "version": "==0.16.0"
         },
         "jinja2": {
             "hashes": [
-                "sha256:065c4f02ebe7f7cf559e49ee5a95fb800a9e4528727aec6f24402a5374c65013",
-                "sha256:14dd6caf1527abb21f08f86c784eac40853ba93edb79552aa1e4b8aef1b61c7b"
+                "sha256:c10142f819c2d22bdcd17548c46fa9b77cf4fda45097854c689666bf425e7484",
+                "sha256:c922560ac46888d47384de1dbdc3daaa2ea993af4b26a436dec31fa2c19ec668"
             ],
-            "version": "==2.10.1"
+            "version": "==3.0.0a1"
         },
         "jsonschema": {
             "hashes": [
-                "sha256:5f9c0a719ca2ce14c5de2fd350a64fd2d13e8539db29836a86adc990bb1a068f",
-                "sha256:8d4a2b7b6c2237e0199c8ea1a6d3e05bf118e289ae2b9d7ba444182a2959560d"
+                "sha256:4e5b3cf8216f577bee9ce139cbe72eca3ea4f292ec60928ff24758ce626cd163",
+                "sha256:c8a85b28d377cc7737e46e2d9f2b4f44ee3c0e1deac6bf46ddefc7187d30797a"
             ],
-            "version": "==3.0.2"
+            "version": "==3.2.0"
         },
         "jupyter": {
             "hashes": [
@@ -285,47 +284,57 @@
         },
         "jupyter-client": {
             "hashes": [
-                "sha256:73a809a2964afa07adcc1521537fddb58c2ffbb7e84d53dc5901cf80480465b3",
-                "sha256:98e8af5edff5d24e4d31e73bc21043130ae9d955a91aa93fc0bc3b1d0f7b5880"
+                "sha256:589dcfb409717cc1baaae5e3d2f7b7f5920763bf039adf4a741aee17e44947af",
+                "sha256:61429e7d2c4b385135d31054944dd3f23a1c6affb0ca3d4328d42fc9ba82b7f5"
             ],
-            "version": "==5.3.1"
+            "version": "==6.1.0"
         },
         "jupyter-console": {
             "hashes": [
-                "sha256:308ce876354924fb6c540b41d5d6d08acfc946984bf0c97777c1ddcb42e0b2f5",
-                "sha256:cc80a97a5c389cbd30252ffb5ce7cefd4b66bde98219edd16bf5cb6f84bb3568"
+                "sha256:6f6ead433b0534909df789ea64f0a14cdf9b6b2360757756f08182be4b9e431b",
+                "sha256:b392155112ec86a329df03b225749a0fa903aa80811e8eda55796a40b5e470d8"
             ],
-            "version": "==6.0.0"
+            "version": "==6.1.0"
         },
         "jupyter-core": {
             "hashes": [
-                "sha256:2c6e7c1e9f2ac45b5c2ceea5730bc9008d92fe59d0725eac57b04c0edfba24f7",
-                "sha256:f4fa22d6cf25f34807c995f22d2923693575c70f02557bcbfbe59bd5ec8d8b84"
+                "sha256:394fd5dd787e7c8861741880bdf8a00ce39f95de5d18e579c74b882522219e7e",
+                "sha256:a4ee613c060fe5697d913416fc9d553599c05e4492d58fac1192c9a6844abb21"
+            ],
+            "version": "==4.6.3"
+        },
+        "jupyterlab-pygments": {
+            "hashes": [
+                "sha256:31deda75bd11b014190764c79f6199aa04ef2d4cf35c1c94270fc2e19c23a5c5",
+                "sha256:cc15f2a9850899d108a3c22743a86edcd3b42791a6c88b6e5b558d021d14d065"
             ],
-            "version": "==4.5.0"
+            "version": "==0.1.0"
         },
         "lazy-object-proxy": {
             "hashes": [
-                "sha256:159a745e61422217881c4de71f9eafd9d703b93af95618635849fe469a283661",
-                "sha256:23f63c0821cc96a23332e45dfaa83266feff8adc72b9bcaef86c202af765244f",
-                "sha256:3b11be575475db2e8a6e11215f5aa95b9ec14de658628776e10d96fa0b4dac13",
-                "sha256:3f447aff8bc61ca8b42b73304f6a44fa0d915487de144652816f950a3f1ab821",
-                "sha256:4ba73f6089cd9b9478bc0a4fa807b47dbdb8fad1d8f31a0f0a5dbf26a4527a71",
-                "sha256:4f53eadd9932055eac465bd3ca1bd610e4d7141e1278012bd1f28646aebc1d0e",
-                "sha256:64483bd7154580158ea90de5b8e5e6fc29a16a9b4db24f10193f0c1ae3f9d1ea",
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-                "sha256:7c7f1ec07b227bdc561299fa2328e85000f90179a2f44ea30579d38e037cb3d4",
-                "sha256:7c8b1ba1e15c10b13cad4171cfa77f5bb5ec2580abc5a353907780805ebe158e",
-                "sha256:8559b94b823f85342e10d3d9ca4ba5478168e1ac5658a8a2f18c991ba9c52c20",
-                "sha256:a262c7dfb046f00e12a2bdd1bafaed2408114a89ac414b0af8755c696eb3fc16",
-                "sha256:acce4e3267610c4fdb6632b3886fe3f2f7dd641158a843cf6b6a68e4ce81477b",
-                "sha256:be089bb6b83fac7f29d357b2dc4cf2b8eb8d98fe9d9ff89f9ea6012970a853c7",
-                "sha256:bfab710d859c779f273cc48fb86af38d6e9210f38287df0069a63e40b45a2f5c",
-                "sha256:c10d29019927301d524a22ced72706380de7cfc50f767217485a912b4c8bd82a",
-                "sha256:dd6e2b598849b3d7aee2295ac765a578879830fb8966f70be8cd472e6069932e",
-                "sha256:e408f1eacc0a68fed0c08da45f31d0ebb38079f043328dce69ff133b95c29dc1"
+                "sha256:0c4b206227a8097f05c4dbdd323c50edf81f15db3b8dc064d08c62d37e1a504d",
+                "sha256:194d092e6f246b906e8f70884e620e459fc54db3259e60cf69a4d66c3fda3449",
+                "sha256:1be7e4c9f96948003609aa6c974ae59830a6baecc5376c25c92d7d697e684c08",
+                "sha256:4677f594e474c91da97f489fea5b7daa17b5517190899cf213697e48d3902f5a",
+                "sha256:48dab84ebd4831077b150572aec802f303117c8cc5c871e182447281ebf3ac50",
+                "sha256:5541cada25cd173702dbd99f8e22434105456314462326f06dba3e180f203dfd",
+                "sha256:59f79fef100b09564bc2df42ea2d8d21a64fdcda64979c0fa3db7bdaabaf6239",
+                "sha256:8d859b89baf8ef7f8bc6b00aa20316483d67f0b1cbf422f5b4dc56701c8f2ffb",
+                "sha256:9254f4358b9b541e3441b007a0ea0764b9d056afdeafc1a5569eee1cc6c1b9ea",
+                "sha256:9651375199045a358eb6741df3e02a651e0330be090b3bc79f6d0de31a80ec3e",
+                "sha256:97bb5884f6f1cdce0099f86b907aa41c970c3c672ac8b9c8352789e103cf3156",
+                "sha256:9b15f3f4c0f35727d3a0fba4b770b3c4ebbb1fa907dbcc046a1d2799f3edd142",
+                "sha256:a2238e9d1bb71a56cd710611a1614d1194dc10a175c1e08d75e1a7bcc250d442",
+                "sha256:a6ae12d08c0bf9909ce12385803a543bfe99b95fe01e752536a60af2b7797c62",
+                "sha256:ca0a928a3ddbc5725be2dd1cf895ec0a254798915fb3a36af0964a0a4149e3db",
+                "sha256:cb2c7c57005a6804ab66f106ceb8482da55f5314b7fcb06551db1edae4ad1531",
+                "sha256:d74bb8693bf9cf75ac3b47a54d716bbb1a92648d5f781fc799347cfc95952383",
+                "sha256:d945239a5639b3ff35b70a88c5f2f491913eb94871780ebfabb2568bd58afc5a",
+                "sha256:eba7011090323c1dadf18b3b689845fd96a61ba0a1dfbd7f24b921398affc357",
+                "sha256:efa1909120ce98bbb3777e8b6f92237f5d5c8ea6758efea36a473e1d38f7d3e4",
+                "sha256:f3900e8a5de27447acbf900b4750b0ddfd7ec1ea7fbaf11dfa911141bc522af0"
             ],
-            "version": "==1.4.1"
+            "version": "==1.4.3"
         },
         "markupsafe": {
             "hashes": [
@@ -333,13 +342,16 @@
                 "sha256:09027a7803a62ca78792ad89403b1b7a73a01c8cb65909cd876f7fcebd79b161",
                 "sha256:09c4b7f37d6c648cb13f9230d847adf22f8171b1ccc4d5682398e77f40309235",
                 "sha256:1027c282dad077d0bae18be6794e6b6b8c91d58ed8a8d89a89d59693b9131db5",
+                "sha256:13d3144e1e340870b25e7b10b98d779608c02016d5184cfb9927a9f10c689f42",
                 "sha256:24982cc2533820871eba85ba648cd53d8623687ff11cbb805be4ff7b4c971aff",
                 "sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b",
                 "sha256:43a55c2930bbc139570ac2452adf3d70cdbb3cfe5912c71cdce1c2c6bbd9c5d1",
                 "sha256:46c99d2de99945ec5cb54f23c8cd5689f6d7177305ebff350a58ce5f8de1669e",
                 "sha256:500d4957e52ddc3351cabf489e79c91c17f6e0899158447047588650b5e69183",
                 "sha256:535f6fc4d397c1563d08b88e485c3496cf5784e927af890fb3c3aac7f933ec66",
+                "sha256:596510de112c685489095da617b5bcbbac7dd6384aeebeda4df6025d0256a81b",
                 "sha256:62fe6c95e3ec8a7fad637b7f3d372c15ec1caa01ab47926cfdf7a75b40e0eac1",
+                "sha256:6788b695d50a51edb699cb55e35487e430fa21f1ed838122d722e0ff0ac5ba15",
                 "sha256:6dd73240d2af64df90aa7c4e7481e23825ea70af4b4922f8ede5b9e35f78a3b1",
                 "sha256:717ba8fe3ae9cc0006d7c451f0bb265ee07739daf76355d06366154ee68d221e",
                 "sha256:79855e1c5b8da654cf486b830bd42c06e8780cea587384cf6545b7d9ac013a0b",
@@ -356,7 +368,9 @@
                 "sha256:ba59edeaa2fc6114428f1637ffff42da1e311e29382d81b339c1817d37ec93c6",
                 "sha256:c8716a48d94b06bb3b2524c2b77e055fb313aeb4ea620c8dd03a105574ba704f",
                 "sha256:cd5df75523866410809ca100dc9681e301e3c27567cf498077e8551b6d20e42f",
-                "sha256:e249096428b3ae81b08327a63a485ad0878de3fb939049038579ac0ef61e17e7"
+                "sha256:cdb132fc825c38e1aeec2c8aa9338310d29d337bebbd7baa06889d09a60a1fa2",
+                "sha256:e249096428b3ae81b08327a63a485ad0878de3fb939049038579ac0ef61e17e7",
+                "sha256:e8313f01ba26fbbe36c7be1966a7b7424942f670f38e666995b88d012765b9be"
             ],
             "version": "==1.1.1"
         },
@@ -376,24 +390,24 @@
         },
         "more-itertools": {
             "hashes": [
-                "sha256:409cd48d4db7052af495b09dec721011634af3753ae1ef92d2b32f73a745f832",
-                "sha256:92b8c4b06dac4f0611c0729b2f2ede52b2e1bac1ab48f089c7ddc12e26bb60c4"
+                "sha256:5dd8bcf33e5f9513ffa06d5ad33d78f31e1931ac9a18f33d37e77a180d393a7c",
+                "sha256:b1ddb932186d8a6ac451e1d95844b382f55e12686d51ca0c68b6f61f2ab7a507"
             ],
-            "version": "==7.2.0"
+            "version": "==8.2.0"
         },
         "nbconvert": {
             "hashes": [
-                "sha256:138381baa41d83584459b5cfecfc38c800ccf1f37d9ddd0bd440783346a4c39c",
-                "sha256:4a978548d8383f6b2cfca4a3b0543afb77bc7cb5a96e8b424337ab58c12da9bc"
+                "sha256:944a5fbe6c4609d74e7f331bfa957c8eff2d53904f7c40f053a44bfb4164b718",
+                "sha256:c86da6adc412df9ad2726fe438589e4495c7835792d6d84f888178682f5d5bcf"
             ],
-            "version": "==5.5.0"
+            "version": "==6.0.0a0"
         },
         "nbformat": {
             "hashes": [
-                "sha256:b9a0dbdbd45bb034f4f8893cafd6f652ea08c8c1674ba83f2dc55d3955743b0b",
-                "sha256:f7494ef0df60766b7cabe0a3651556345a963b74dbc16bc7c18479041170d402"
+                "sha256:562de41fc7f4f481b79ab5d683279bf3a168858268d4387b489b7b02be0b324a",
+                "sha256:f4bbbd8089bd346488f00af4ce2efb7f8310a74b2058040d075895429924678c"
             ],
-            "version": "==4.4.0"
+            "version": "==5.0.4"
         },
         "nbsphinx": {
             "hashes": [
@@ -405,16 +419,16 @@
         },
         "nodeenv": {
             "hashes": [
-                "sha256:ad8259494cf1c9034539f6cced78a1da4840a4b157e23640bc4a0c0546b0cb7a"
+                "sha256:5b2438f2e42af54ca968dd1b374d14a1194848955187b0e5e4be1f73813a5212"
             ],
-            "version": "==1.3.3"
+            "version": "==1.3.5"
         },
         "notebook": {
             "hashes": [
-                "sha256:0be97e939cec73cde37fc4d2a606a6f497a9addf3afcf61a09a21b0c35e699c5",
-                "sha256:5c16dbf4fa824db19de43637ebfb24bcbd3b4f646e5d6a0414ed3a376d6bc951"
+                "sha256:3edc616c684214292994a3af05eaea4cc043f6b4247d830f3a2f209fa7639a80",
+                "sha256:47a9092975c9e7965ada00b9a20f0cf637d001db60d241d479f53c0be117ad48"
             ],
-            "version": "==6.0.0"
+            "version": "==6.0.3"
         },
         "numpy": {
             "hashes": [
@@ -440,10 +454,10 @@
         },
         "packaging": {
             "hashes": [
-                "sha256:a7ac867b97fdc07ee80a8058fe4435ccd274ecc3b0ed61d852d7d53055528cf9",
-                "sha256:c491ca87294da7cc01902edbe30a5bc6c4c28172b5138ab4e4aa1b9d7bfaeafe"
+                "sha256:3c292b474fda1671ec57d46d739d072bfd495a4f51ad01a055121d81e952b7a3",
+                "sha256:82f77b9bee21c1bafbf35a84905d604d5d1223801d639cf3ed140bd651c08752"
             ],
-            "version": "==19.1"
+            "version": "==20.3"
         },
         "pandas": {
             "hashes": [
@@ -473,18 +487,18 @@
         },
         "parso": {
             "hashes": [
-                "sha256:63854233e1fadb5da97f2744b6b24346d2750b85965e7e399bec1620232797dc",
-                "sha256:666b0ee4a7a1220f65d367617f2cd3ffddff3e205f3f16a0284df30e774c2a9c"
+                "sha256:0c5659e0c6eba20636f99a04f469798dca8da279645ce5c387315b2c23912157",
+                "sha256:8515fc12cfca6ee3aa59138741fc5624d62340c97e401c74875769948d4f2995"
             ],
-            "version": "==0.5.1"
+            "version": "==0.6.2"
         },
         "pexpect": {
             "hashes": [
-                "sha256:2094eefdfcf37a1fdbfb9aa090862c1a4878e5c7e0e7e7088bdb511c558e5cd1",
-                "sha256:9e2c1fd0e6ee3a49b28f95d4b33bc389c89b20af6a1255906e90ff1262ce62eb"
+                "sha256:0b48a55dcb3c05f3329815901ea4fc1537514d6ba867a152b581d69ae3710937",
+                "sha256:fc65a43959d153d0114afe13997d439c22823a27cefceb5ff35c2178c6784c0c"
             ],
             "markers": "sys_platform != 'win32'",
-            "version": "==4.7.0"
+            "version": "==4.8.0"
         },
         "pickleshare": {
             "hashes": [
@@ -503,10 +517,10 @@
         },
         "pluggy": {
             "hashes": [
-                "sha256:0825a152ac059776623854c1543d65a4ad408eb3d33ee114dff91e57ec6ae6fc",
-                "sha256:b9817417e95936bf75d85d3f8767f7df6cdde751fc40aed3bb3074cbcb77757c"
+                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
+                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
             ],
-            "version": "==0.12.0"
+            "version": "==0.13.1"
         },
         "pre-commit": {
             "hashes": [
@@ -524,11 +538,10 @@
         },
         "prompt-toolkit": {
             "hashes": [
-                "sha256:11adf3389a996a6d45cc277580d0d53e8a5afd281d0c9ec71b28e6f121463780",
-                "sha256:2519ad1d8038fd5fc8e770362237ad0364d16a7650fb5724af6997ed5515e3c1",
-                "sha256:977c6583ae813a37dc1c2e1b715892461fcbdaa57f6fc62f33a528c4886c8f55"
+                "sha256:859e1b205b6cf6a51fa57fa34202e45365cf58f8338f0ee9f4e84a4165b37d5b",
+                "sha256:ebe6b1b08c888b84c50d7f93dee21a09af39860144ff6130aadbd61ae8d29783"
             ],
-            "version": "==2.0.9"
+            "version": "==3.0.4"
         },
         "ptyprocess": {
             "hashes": [
@@ -540,10 +553,10 @@
         },
         "py": {
             "hashes": [
-                "sha256:64f65755aee5b381cea27766a3a147c3f15b9b6b9ac88676de66ba2ae36793fa",
-                "sha256:dc639b046a6e2cff5bbe40194ad65936d6ba360b52b3c3fe1d08a82dd50b5e53"
+                "sha256:5e27081401262157467ad6e7f851b7aa402c5852dbcb3dae06768434de5752aa",
+                "sha256:c20fdd83a5dbc0af9efd622bee9a5564e278f6380fffcacc43ba6f43db2813b0"
             ],
-            "version": "==1.8.0"
+            "version": "==1.8.1"
         },
         "pycodestyle": {
             "hashes": [
@@ -561,10 +574,10 @@
         },
         "pygments": {
             "hashes": [
-                "sha256:71e430bc85c88a430f000ac1d9b331d2407f681d6f6aec95e8bcfbc3df5b0127",
-                "sha256:881c4c157e45f30af185c1ffe8d549d48ac9127433f2c380c24b84572ad66297"
+                "sha256:647344a061c249a3b74e230c739f434d7ea4d8b1d5f3721bc0f3558049b38f44",
+                "sha256:ff7a40b4860b727ab48fad6360eb351cc1b33cbf9b15a0f689ca5353e9463324"
             ],
-            "version": "==2.4.2"
+            "version": "==2.6.1"
         },
         "pylint": {
             "hashes": [
@@ -576,16 +589,16 @@
         },
         "pyparsing": {
             "hashes": [
-                "sha256:6f98a7b9397e206d78cc01df10131398f1c8b8510a2f4d97d9abd82e1aacdd80",
-                "sha256:d9338df12903bbf5d65a0e4e87c2161968b10d2e489652bb47001d82a9b028b4"
+                "sha256:4c830582a84fb022400b85429791bc551f1f4871c33f23e44f353119e92f969f",
+                "sha256:c342dccb5250c08d45fd6f8b4a559613ca603b57498511740e65cd11a2e7dcec"
             ],
-            "version": "==2.4.2"
+            "version": "==2.4.6"
         },
         "pyrsistent": {
             "hashes": [
-                "sha256:34b47fa169d6006b32e99d4b3c4031f155e6e68ebcc107d6454852e8e0ee6533"
+                "sha256:cdc7b5e3ed77bed61270a47d35434a30617b9becdf2478af76ad2c6ade307280"
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-            "version": "==0.15.4"
+            "version": "==0.15.7"
         },
         "pytest": {
             "hashes": [
@@ -597,17 +610,17 @@
         },
         "python-dateutil": {
             "hashes": [
-                "sha256:7e6584c74aeed623791615e26efd690f29817a27c73085b78e4bad02493df2fb",
-                "sha256:c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e"
+                "sha256:73ebfe9dbf22e832286dafa60473e4cd239f8592f699aa5adaf10050e6e1823c",
+                "sha256:75bb3f31ea686f1197762692a9ee6a7550b59fc6ca3a1f4b5d7e32fb98e2da2a"
             ],
-            "version": "==2.8.0"
+            "version": "==2.8.1"
         },
         "pytz": {
             "hashes": [
-                "sha256:26c0b32e437e54a18161324a2fca3c4b9846b74a8dccddd843113109e1116b32",
-                "sha256:c894d57500a4cd2d5c71114aaab77dbab5eabd9022308ce5ac9bb93a60a6f0c7"
+                "sha256:1c557d7d0e871de1f5ccd5833f60fb2550652da6be2693c1e02300743d21500d",
+                "sha256:b02c06db6cf09c12dd25137e563b31700d3b80fcc4ad23abb7a315f2789819be"
             ],
-            "version": "==2019.2"
+            "version": "==2019.3"
         },
         "pyyaml": {
             "hashes": [
@@ -630,40 +643,50 @@
         },
         "pyzmq": {
             "hashes": [
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-                "sha256:cf0765822e78cf9e45451647a346d443f66792aba906bc340f4e0ac7870c169c",
-                "sha256:dc398e1e047efb18bfab7a8989346c6921a847feae2cad69fedf6ca12fb99e2c",
-                "sha256:dd5995ae2e80044e33b5077fb4bc2b0c1788ac6feaf15a6b87a00c14b4bdd682",
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-            "version": "==18.1.0"
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+                "sha256:f5b6d015587a1d6f582ba03b226a9ddb1dfb09878b3be04ef48b01b7d4eb6b2a"
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-            "version": "==4.5.2"
+            "version": "==4.7.1"
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+        "qtpy": {
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@@ -675,10 +698,10 @@
         },
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@@ -695,16 +718,17 @@
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-            "version": "==1.9.0"
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@@ -731,24 +755,24 @@
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         "sphinxcontrib-applehelp": {
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-            "version": "==1.0.1"
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@@ -759,31 +783,31 @@
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@@ -794,64 +818,72 @@
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@@ -862,10 +894,10 @@
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@@ -875,44 +907,50 @@
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-                "sha256:20a12ab46a7e72b89ce0671e7d7a6c3c1ca2c2766ac98112f78c5bddaa6e4375",
-                "sha256:298f82c0ab1b182bd1f34f347ea97dde0fffb9ecf850ecf7f8904b8442a07487",
-                "sha256:2f6175722da6f23dbfc76c26c241b67b020e1e83ec7fe93c9e5d3dd18667ada2",
-                "sha256:3b877de633a0f6d81b600624ff9137312d8b1d0f517064dfc39999352ab659f0",
-                "sha256:4265681e77f5ac5bac0905812b828c9fe1ce80c6f3e3f8574acfb5643aeabc5b",
-                "sha256:550695c4e7313555549aa1cdb978dc9413d61307531f123558e438871a883d63",
-                "sha256:5f4d42baed3a14c290a078e2696c5f565501abde1b2f3f1a1c0a94fbf6fbcc39",
-                "sha256:62dd71dbed8cc6a18379700701d959307823b3b2451bdc018594c48956ace745",
-                "sha256:7040547e5b882349c0a2cc9b50674b1745db551f330746af434aad4f09fba2cc",
-                "sha256:7e099fde2cce8b29434684f82977db4e24f0efa8b0508179fce1602d103296a2",
-                "sha256:7e5c9a5012b2b33e87980cee7d1c82412b2ebabcb5862d53413ba1a2cfde23aa",
-                "sha256:81295629128f929e73be4ccfdd943a0906e5fe3cdb0d43ff1e5144d16fbb52b1",
-                "sha256:95cc574b0b83b85be9917d37cd2fad0ce5a0d21b024e1a5804d044aabea636fc",
-                "sha256:968d5c5702da15c5bf8e4a6e4b67a4d92164e334e9c0b6acf080106678230b98",
-                "sha256:9e998ba87df77a85c7bed53240a7257afe51a07ee6bc3445a0bf841886da0b97",
-                "sha256:a0c39e2535a7e9c195af956610dba5a1073071d2d85e9d2e5d789463f63e52ab",
-                "sha256:a15e75d284178afe529a536b0e8b28b7e107ef39626a7809b4ee64ff3abc9127",
-                "sha256:a6a6ff82f5f9b9702478035d8f6fb6903885653bff7ec3a1e011edc9b1a7168d",
-                "sha256:b639f72b95389620c1f881d94739c614d385406ab1d6926a9ffe1c8abbea23fe",
-                "sha256:bad44274b151d46619a7567010f7cde23a908c6faa84b97598fd2f474a0c6891",
-                "sha256:bbcef00d09a30948756c5968863316c949d9cedbc7aabac5e8f0ffbdb632e5f1",
-                "sha256:d788a3999014ddf416f2dc454efa4a5dbeda657c6aba031cf363741273804c6b",
-                "sha256:eed88ae03e1ef3a75a0e96a55a99d7937ed03e53d0cffc2451c208db445a2966",
-                "sha256:f99451f3a579e73b5dd58b1b08d1179791d49084371d9a47baad3b22417f0317"
-            ],
-            "version": "==4.6.0"
+                "sha256:07afd6f3f5054962661b25307c9a1ce1684f7c7c3bf052f082305b124f918ffb",
+                "sha256:126295492a6481d508d1ec06301f05ddec00079907c11851babefe1123ade7e6",
+                "sha256:194795548ce9190004993d7adbc8e1795c75110771dc2068d3b8d0788499dcbb",
+                "sha256:1f2700a02e2123daddc0f8eb698a7002864e5e230c0a48236d07f703917adf64",
+                "sha256:2789ed1b3f5321924212666ec93fbba8eee72ec01b1bd9ba2976ab3465bcb6a1",
+                "sha256:284eae159856673db576c0db618c3a18129ee97243ab2c65b2377e8f75a2b37b",
+                "sha256:28e6d11e37eb33f8d7f391e6b43adfd63326bb3f5471ba541bb994758daebf57",
+                "sha256:36c98098fdce470ee8b36f7a4b1d60eec34239e487edef323a2fdba52e94586f",
+                "sha256:3c1cb55dcd159075af69f40e048cd05ad31b443f832c78de4f81bb5ff313a30d",
+                "sha256:3e9ff47755a842b61e2d86c898071564761ffa5951b87acafe76190e04486e8f",
+                "sha256:45f19b80ef03e5be144a21ab1c592368f001bbe47103b592e17218a201446c6b",
+                "sha256:4c3f5ef617a93c4c9b996a7baa24aca489b5d9895ef9808044f56b2fd1fff71d",
+                "sha256:51df4554325a614bca28ecd1dffd6c538dee2427d322b6f0f38283fbc04ee17c",
+                "sha256:5d216d7f228bcc556c2d6358bf5f5e0b743fe2c6d61106562ff7c4d6d3bb59f0",
+                "sha256:5dd85e1f491fc3ae38861f845aa55f261316e26bed460f27cf0744a2cd127870",
+                "sha256:6afec58c1c09509fd2510e3b6568461f44c2d49130e73a774a59e411f693a903",
+                "sha256:6c9d257b4a913352ca72bdcc3dc4bf1158349e8f9aedfeab97b1eb8888fbade5",
+                "sha256:79616f2f9a000610cd838f4ba22ee36af8fa4c67f1c39524aeace05e3c82fe3a",
+                "sha256:7b554935b8a6442d26f88c414e97d52b22316c15402718ce66b870ee9bb8ed1c",
+                "sha256:9356ec81e4660b7507ffbc57c7629c187ca85e51e39b1d1fd590d223ce738dbe",
+                "sha256:95af7f309f9b05d2abcff900e5d832d5c4cf7bb692ebd7ee131f765f86c1cbd9",
+                "sha256:979a05c338fadaef2bb470b2aef31255dc0f43476061a44988384307995d9f7a",
+                "sha256:97d13f61a986e089a2dab19c3b5233705cc92d3dccba0b4db9689b5be2ef4eca",
+                "sha256:a1a757e199fc77fea6f293f8bdeb1b2b244ba015bb829aeba350c7c55789fb95",
+                "sha256:a2f05a27b612186787f3addb65fb144ff27a6a66b5001010d0daeb4c2eb14145",
+                "sha256:a67f8e3eadfb1280c286342852d2ee4cfeb4fe469c2585fd26c8aa47aae73c95",
+                "sha256:b8720247c6244d772c7b911b89a516f856ac5d41f942c9b3c45b1ee9bdbbf370",
+                "sha256:c43aad4ef895e9b5447045f3aa7bce39da271d6c2895b1cb7b4cf752210226fa",
+                "sha256:dd0bc4016ec9ffa6d327bf3ba2f044c3ff376880661e5cc38c622e1ae023076f",
+                "sha256:e039c81d9e7e2e6ec4306c7d8b49aa21dd087571fba01ea398b36649acea5391",
+                "sha256:e37b3471a811103a916341755cc2cc3c55223202f4b84a640a6c2e60ca869b2a",
+                "sha256:e52ceb49161c1f5acd653d4558523c87d1458db3c662913a72ced041f7ebe5ef",
+                "sha256:e5a788384d39179533b63bde5aff56a2e26c194e6142d6ecb29e7127b145e2ac",
+                "sha256:ec2cebff8e4ee8e7fdff28bb0e22be38027de7f49c48868a73620f48f72afa9a",
+                "sha256:f4c516595d00599e8057146ebab9b68a726a6233ef20760c2f16d0340a79776c"
+            ],
+            "version": "==5.0.1"
         }
     },
     "develop": {}
diff --git a/requirements.txt b/requirements.txt
index d713350..8152c28 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,106 +1,108 @@
--i https://pypi.org/simple
+-i https://pypi.org/simple/
 alabaster==0.7.12
 appdirs==1.4.3
-appnope==0.1.0 ; sys_platform == 'darwin'
 aspy.yaml==1.3.0
-astroid==2.2.5
+astroid==2.3.3
 atomicwrites==1.3.0
-attrs==19.1.0
-babel==2.7.0
+attrs==19.3.0
+babel==2.8.0
 backcall==0.1.0
 black==19.3b0
-bleach==3.1.0
-certifi==2019.6.16
-cfgv==2.0.1
+bleach==3.1.2
+certifi==2019.11.28
+cfgv==3.1.0
 chardet==3.0.4
-click==7.0
-commonmark==0.9.0
+click==7.1.1
+commonmark==0.9.1
 datetime==4.3
-decorator==4.4.0
+decorator==4.4.2
 defusedxml==0.6.0
-docutils==0.15.2
+distlib==0.3.0
+docutils==0.16
 entrypoints==0.3
+filelock==3.0.12
 flake8==3.7.8
-future==0.17.1
 geojson==2.4.1
-identify==1.4.5
-idna==2.8
-imagesize==1.1.0
-importlib-metadata==0.19
-ipykernel==5.1.2
+identify==1.4.13
+idna==2.9
+imagesize==1.2.0
+importlib-metadata==1.5.0 ; python_version < '3.8'
+ipykernel==5.2.0
 ipython-genutils==0.2.0
-ipython==7.7.0 ; python_version >= '3.3'
-ipywidgets==7.5.1
+ipython==7.13.0
+ipywidgets==8.0.0a0
 isort==4.3.21
-jedi==0.14.1
-jinja2==2.10.1
-jsonschema==3.0.2
-jupyter-client==5.3.1
-jupyter-console==6.0.0
-jupyter-core==4.5.0
+jedi==0.16.0
+jinja2==3.0.0a1
+jsonschema==3.2.0
+jupyter-client==6.1.0
+jupyter-console==6.1.0
+jupyter-core==4.6.3
 jupyter==1.0.0
-lazy-object-proxy==1.4.1
+jupyterlab-pygments==0.1.0
+lazy-object-proxy==1.4.3
 markupsafe==1.1.1
 mccabe==0.6.1
 mistune==0.8.4
-more-itertools==7.2.0
-nbconvert==5.5.0
-nbformat==4.4.0
+more-itertools==8.2.0
+nbconvert==6.0.0a0
+nbformat==5.0.4
 nbsphinx==0.4.2
-nodeenv==1.3.3
-notebook==6.0.0
+nodeenv==1.3.5
+notebook==6.0.3
 numpy==1.17.0
-packaging==19.1
+packaging==20.3
 pandas==0.25.0
 pandocfilters==1.4.2
-parso==0.5.1
-pexpect==4.7.0 ; sys_platform != 'win32'
+parso==0.6.2
+pexpect==4.8.0 ; sys_platform != 'win32'
 pickleshare==0.7.5
 plotly==4.1.0
-pluggy==0.12.0
+pluggy==0.13.1
 pre-commit==1.18.0
 prometheus-client==0.7.1
-prompt-toolkit==2.0.9
+prompt-toolkit==3.0.4
 ptyprocess==0.6.0 ; os_name != 'nt'
-py==1.8.0
+py==1.8.1
 pycodestyle==2.5.0
 pyflakes==2.1.1
-pygments==2.4.2
+pygments==2.6.1
 pylint==2.3.1
-pyparsing==2.4.2
-pyrsistent==0.15.4
+pyparsing==2.4.6
+pyrsistent==0.15.7
 pytest==5.0.1
-python-dateutil==2.8.0
-pytz==2019.2
+python-dateutil==2.8.1
+pytz==2019.3
 pyyaml==5.1.2
-pyzmq==18.1.0
-qtconsole==4.5.2
+pyzmq==19.0.0
+qtconsole==4.7.1
+qtpy==1.9.0
 recommonmark==0.5.0
-requests==2.22.0
+requests==2.23.0
 retrying==1.3.3
 send2trash==1.5.0
-six==1.12.0
-snowballstemmer==1.9.0
+six==1.14.0
+snowballstemmer==2.0.0
 sphinx-automodapi==0.11
 sphinx-rtd-theme==0.4.3
 sphinx==2.1.2
-sphinxcontrib-applehelp==1.0.1
-sphinxcontrib-devhelp==1.0.1
-sphinxcontrib-htmlhelp==1.0.2
+sphinxcontrib-applehelp==1.0.2
+sphinxcontrib-devhelp==1.0.2
+sphinxcontrib-htmlhelp==1.0.3
 sphinxcontrib-jsmath==1.0.1
-sphinxcontrib-qthelp==1.0.2
-sphinxcontrib-serializinghtml==1.1.3
-terminado==0.8.2
-testpath==0.4.2
+sphinxcontrib-qthelp==1.0.3
+sphinxcontrib-serializinghtml==1.1.4
+terminado==0.8.3
+testpath==0.4.4
 toml==0.10.0
-tornado==6.0.3
-traitlets==4.3.2
-typed-ast==1.4.0 ; implementation_name == 'cpython'
-urllib3==1.25.3
-virtualenv==16.7.2
-wcwidth==0.1.7
+tornado==6.0.4
+traitlets==4.3.3
+typed-ast==1.4.1 ; implementation_name == 'cpython' and python_version < '3.8'
+urllib3==1.25.8
+virtualenv==20.0.13
+wcwidth==0.1.9
 webencodings==0.5.1
-widgetsnbextension==3.5.1
+widgetsnbextension==4.0.0a0
 wrapt==1.11.2
-zipp==0.5.2
-zope.interface==4.6.0
+zipp==3.1.0
+zope.interface==5.0.1