Removed Node 4, added Node 10 version in Travis CI config, additional linit check on test run

Author: holgerd77

.travis.yml

@@ -1,8 +1,8 @@
 language: node_js
 node_js:
-  - "4"
   - "6"
   - "8"
+  - "10"
 env:
   - CXX=g++-4.8
 addons:

package.json

@@ -10,8 +10,8 @@
     "coverage": "npm run build:dist && istanbul cover _mocha",
     "coveralls": "npm run coverage && coveralls <coverage/lcov.info",
     "lint": "standard",
-    "prepublishOnly": "npm run lint && npm run build:dist && npm run test",
-    "test": "npm run test:node && npm run test:browser",
+    "prepublishOnly": "npm run test && npm run build:dist",
+    "test": "npm run lint && npm run test:node && npm run test:browser",
     "test:browser": "npm run build:dist && karma start karma.conf.js",
     "test:node": "npm run build:dist && istanbul test mocha -- --reporter spec",
     "build:dist": "babel index.js --source-root ./ -d ./dist",