ci: Update CI scripts to test against current Node release (#453)

* ci(.travis.yml): Update Travis to test against current Node release

Added Node-10 to list of Node versions against which to test.

Fixes #452 
Fixes #454

* ci(.travis.yml): Update Travis to test against Node-9.x

Added Node-9 to list of Node versions against which to test. Added file header. Moved "cache" after
install step. Moved "notifications" after deploy pseudo-step.

* ci(appveyor.yml): Rename AppVeyor settings file to use its alternative name

* ci(.appveyor.yml): Update AppVeyor to test against current Node release

Added Node-10 to list of Node versions against which to test. Added file header. Added ability to
skip CI via git commit message. Added ability to stop tests once any job fails.

* ci(.appveyor.yml): Remove "skip_commits" directive

Directive was unnecessary as handled standard. Moved "cache" directive closer to where used in
phase. Moved "branches" directive to bottom to match location in Travis configuration.

appveyor.yml → .appveyor.yml

@@ -1,26 +1,34 @@
-branches:
-  only:
-    - master
-    - next
-    - /^greenkeeper/.*$/
-
-cache:
-  - node_modules
-  - "%LOCALAPPDATA%\\Yarn"
+###
+### .appveyor.yml
+###
 
 environment:
   matrix:
+    - nodejs_version: '10'
     - nodejs_version: '8'
     - nodejs_version: '6'
 
+matrix:
+  fast_finish: true
+
 install:
   - ps: Install-Product node $env:nodejs_version
   - set CI=true
   - yarn install
 
+build: off
+
+cache:
+  - node_modules
+  - "%LOCALAPPDATA%\\Yarn"
+
 test_script:
   - node --version
   - yarn --version
   - yarn test
 
-build: off
+branches:
+  only:
+    - master
+    - next
+    - /^greenkeeper/.*$/

.travis.yml

@@ -1,15 +1,20 @@
+###
+### .travis.yml
+###
+
 language: node_js
-notifications:
-  email: false
-cache:
-  yarn: true
-  directories: node_modules
 node_js:
+  - '10'
+  - '9'
   - '8'
   - '6'
 
 before_install: yarn global add greenkeeper-lockfile@1
 install: yarn install
+cache:
+  yarn: true
+  directories:
+    - node_modules
 
 before_script: greenkeeper-lockfile-update
 after_script: greenkeeper-lockfile-upload
@@ -19,6 +24,9 @@ after_success:
   - yarn global add travis-deploy-once@4
   - travis-deploy-once "yarn global add semantic-release@12 && semantic-release"
 
+notifications:
+  email: false
+
 branches:
   only:
     - master