http://stackoverflow.com/questions/39938176/ember2-8-sending-an-action-from-a-component-to-the-controller

components.game-card.js

import Ember from 'ember';

    export default Ember.Component.extend({
      classNames: ['flip-container'],
      actions: {
        //blank for now because testing for bubbling up
      }
    });

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  actions: {
        proveImAlive(cardNo) {
          console.log('Im aliiiiveeee - cardNo',cardNo);
        }
      }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
{{my-component }}
{{game-card }}
<br>
{{outlet}}
<br>
<br>

templates.components.game-card.hbs

<div class="flipper">
  <div class="front"></div>
  <div class="back">
    <button {{action "proveImAlive" 1 on="click"}} > ProveIamAlive</button>
  </div>
</div>
{{yield}}

templates.components.my-component.hbs

{{!--game-card --}}
{{yield}}

twiddle.json

{
  "version": "0.10.5",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.8.0",
    "ember-data": "2.8.0",
    "ember-template-compiler": "2.8.0",
    "ember-testing": "2.8.0"
  },
  "addons": {}
}