Merge branch 'develop' into develop

Author: srowhani

.commitlintrc.yml

@@ -0,0 +1,2 @@
+extends:
+  - '@commitlint/config-conventional'

.travis.yml

@@ -1,9 +1,22 @@
 language: node_js
 node_js:
-  - '4'
   - '6'
+  - '9'
   - 'stable'
-after_success: npm run coverage
+cache:
+  directories:
+    - node_modules
+install:
+  - npm install
+script:
+  - npm test
+after_script:
+  - npm run coverage
+jobs:
+  include:
+    - stage: deploy
+      node_js: stable
+      script: "npm run semantic-release"
 notifications:
   slack:
     secure: RrEbq2xE1hWdog4AckkaKDnIYYwo5VdjPcFNhRJbn/7KI0fKeZVCKZy1Ww7aaJGth7R7UX415sEV1U6RrjFyhnBb6Sh+rh8fKTvcvuTbENZW45SbtUD+xmgOvb2kfk4PzgD5Q457DpchAZD7W+E+9qr3xI3Uvh4II1uhDmSKiLI=

appveyor.yml

@@ -5,8 +5,8 @@ init:
 # Test against this version of Node.js
 environment:
   matrix:
-    - nodejs_version: '4'
     - nodejs_version: '6'
+    - nodejs_version: '9'
       # Latest stable version of Node
     - nodejs_version: 'stable'