Add .coafile

Fix lint error raised by coala at LICENSE.md && README.md

Closes #31

Author: bekicot

.coafile

@@ -0,0 +1,11 @@
+[all]
+ignore = node_modules/**, bower_components/**, dist/**, .eslintrc.js
+
+[all.javascript]
+bears = ESLintBear
+files = **.js
+max_lines_per_file = 80
+
+[all.markdown]
+bears = MarkdownBear
+files = **.md

.travis.yml

@@ -1,27 +1,39 @@
 ---
+addons:
+  apt:
+    sources:
+      - deadsnakes # source required so it finds the package definition below
+    packages:
+      - python3
+      - python3-pip
+
 language: node_js
 node_js:
   - "6"
 
-sudo: false
-
 cache:
   directories:
     - $HOME/.npm
-    - $HOME/.cache # includes bowers cache
+    - $HOME/.cache  # includes bowers cache
 
 before_install:
   - npm config set spin false
   - npm install -g bower phantomjs-prebuilt
   - bower --version
   - phantomjs --version
+  - pip3 install --upgrade pip
 
 install:
+  - pip3 install coala coala-bears yamllint
+  # coala doesn't discover local packages.
+  - npm install -g eslint eslint-plugin-ember
   - npm install
   - bower install
   - npm install -g ember-cli
 
 script:
+  - yamllint  # coala's ymllint bear currently ignoring .yamllint.
+  - coala --non-interactive
   - npm test
 
 before_deploy:

.yamllint

@@ -0,0 +1,3 @@
+---
+rules:
+  truthy: disable  # The current version of yaml, checking keys.