bump to version 0.2.4

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "argmin"
-version = "0.2.3"
+version = "0.2.4"
 authors = ["Stefan Kroboth <[email protected]>"]
 edition = "2018"
 license = "MIT OR Apache-2.0"
@@ -20,10 +20,10 @@ exclude = [
 [dependencies]
 # argmin_core = { path = "../argmin-core"}
 # argmin_testfunctions = { path = "../argmin-testfunctions" }
-argmin_core = { git = "https://github.com/argmin-rs/argmin-core.git", branch = "master"}
-argmin_testfunctions = { git = "https://github.com/argmin-rs/argmin-testfunctions.git", branch = "master"}
-# argmin_core = "0.2.3"
-# argmin_testfunctions = "0.1.1"
+# argmin_core = { git = "https://github.com/argmin-rs/argmin-core.git", branch = "master"}
+# argmin_testfunctions = { git = "https://github.com/argmin-rs/argmin-testfunctions.git", branch = "master"}
+argmin_core = "0.2.4"
+argmin_testfunctions = "0.1.1"
 rand = { version = "0.6.5", features = ["serde1"] }
 rand_xorshift = { version = "0.1.1", features = ["serde1"] }
 serde = { version = "1.0", features = ["derive", "rc"] }