Update ember-cli and dependencies

    - Adopt yarn
    - use eslint directly
    - remove lots of dependencies required only for building browser code
    - Embrace being a node-only ember-cli addon
    - remove lots of boilerplate ember-cli addon files and directories

Author: lukemelia

.bowerrc

@@ -0,0 +1,13 @@
+module.exports = {
+  root: true,
+  parserOptions: {
+    ecmaVersion: 6,
+    sourceType: 'module'
+  },
+  extends: 'eslint:recommended',
+  env: {
+    browser: true
+  },
+  rules: {
+  }
+};

.eslintrc.js

@@ -1,4 +1,4 @@
-# See http://help.github.com/ignore-files/ for more about ignoring files.
+# See https://help.github.com/ignore-files/ for more about ignoring files.
 
 # compiled output
 /dist
@@ -13,5 +13,5 @@
 /connect.lock
 /coverage/*
 /libpeerconnection.log
-npm-debug.log
+npm-debug.log*
 testem.log

.gitignore

@@ -1,22 +1,19 @@
 ---
 language: node_js
 node_js:
-  - "0.12"
+  - "6"
 
 sudo: false
 
 cache:
-  directories:
-    - node_modules
+  yarn: true
 
 before_install:
-  - "npm config set spin false"
-  - "npm install -g npm@^2"
+  - curl -o- -L https://yarnpkg.com/install.sh | bash
+  - export PATH=$HOME/.yarn/bin:$PATH
 
 install:
-  - npm install -g bower
-  - npm install
-  - bower install
+  - yarn install --no-lockfile
 
 script:
-  - npm test
+  - yarn test

.jshintrc

@@ -73,6 +73,10 @@ The default configuration of this plugin expects the deployment context to have
 
 [ember-cli-deploy-s3](https://github.com/ember-cli-deploy/ember-cli-deploy-s3)
 
-## Running Tests
+## Tests
 
-* `npm test`
+* yarn test
+
+## Why `ember build` and `ember test` don't work
+
+Since this is a node-only ember-cli addon, this package does not include many files and dependencies which are part of ember-cli's typical `ember build` and `ember test` processes.