Switch to use NYC for coverage as it replaces Istanbul CLI

.gitignore

@@ -1,8 +1,7 @@
 /node*
-/public/
 *.env*
-/.haikro-cache
 .eslintrc.js
 .editorconfig
 /.idea
 /coverage
+/.nyc_output/

Makefile

@@ -5,16 +5,14 @@ unit-test:
 	export AWS_SIGNED_FETCH_DISABLE_DNS_RESOLUTION=true; \
 	mocha 'test/spec/**/*-spec.js'
 
+unit-test-coverage:
+	nyc --reporter=$(if $(CIRCLECI),lcovonly,lcov) make unit-test
+
 test:
 	make verify
 
 ifeq ($(CIRCLECI),true)
-	make coverage-report && cat ./coverage/lcov.info | ./node_modules/.bin/coveralls
+	make unit-test-coverage && cat ./coverage/lcov.info | ./node_modules/.bin/coveralls
 else
 	make unit-test
 endif
-
-coverage-report:
-	export NODE_ENV=test; \
-	export AWS_SIGNED_FETCH_DISABLE_DNS_RESOLUTION=true; \
-	istanbul cover --report lcovonly ./node_modules/.bin/_mocha -- 'test/spec/**/*-spec.js'

package.json

@@ -11,9 +11,9 @@
     "chai": "^3.5.0",
     "coveralls": "^2.13.0",
     "eslint": "^3.18.0",
-    "istanbul": "^0.4.5",
     "lintspaces-cli": "^0.6.0",
     "mocha": "^3.2.0",
-    "nock": "^9.0.11"
+    "nock": "^9.0.11",
+    "nyc": "^10.2.0"
   }
 }