[test] Use nyc for coverage

Author: lpinca

.gitignore

@@ -1,4 +1,5 @@
 node_modules/
+.nyc_output/
 coverage/
-npm-debug.log
 .vscode/
+npm-debug.log

.travis.yml

@@ -5,7 +5,5 @@ node_js:
   - "7"
   - "6"
   - "4"
-script:
-  - "npm run test-travis"
-after_script:
-  - "npm install coveralls@2 && cat coverage/lcov.info | coveralls"
+after_success:
+  - "npm install coveralls@2 && nyc report --reporter=text-lcov | coveralls"

package.json

@@ -18,10 +18,8 @@
     "url": "git://github.com/websockets/ws.git"
   },
   "scripts": {
-    "test-travis": "npm run lint && istanbul cover _mocha --report lcovonly -- test/*.test.js",
-    "coverage": "istanbul cover _mocha --report html -- test/*.test.js",
-    "integration": "npm run lint && mocha test/*.integration.js",
-    "test": "npm run lint && mocha test/*.test.js",
+    "test": "eslint . && nyc --reporter=html --reporter=text mocha test/*.test.js",
+    "integration": "eslint . && mocha test/*.integration.js",
     "lint": "eslint ."
   },
   "dependencies": {
@@ -36,8 +34,8 @@
     "eslint-plugin-node": "~4.2.0",
     "eslint-plugin-promise": "~3.5.0",
     "eslint-plugin-standard": "~2.1.0",
-    "istanbul": "~0.4.5",
     "mocha": "~3.2.0",
+    "nyc": "~10.2.0",
     "utf-8-validate": "~3.0.0"
   }
 }