A type ahead box using twitter's type ahead
npm install jvanderz22-ember-cli-typeahead#Ember CLI Typeahead
{{type-ahead class="typeahead" placeholder="Search countries"
name="countries" highlight=true content=content targetAction="typeAheadTargetAction"}}
* content: The data used in the lookup.
* targetAction: This is the action that will be called on events focusIn, focusOut, keyUp and keyDown. The action
will pass in a corresponding value to let the controller know which event triggered it - i.e "focus-in", "focus-out",
"key-up" or "key-down".
TextField and so has all those options available. In