adding support for itemController. thanks to Sir @kselden for help
Merge pull request #59 from twokul/master

Adding support for itemController
Update ember-source
Update ember-dev
Fix path to libraries to use what provided by ember-dev
Update examples using rack server
Remove unnecessary libraries
Remove unused libraries
Remove unused tasks

Currently, ember.js is managed by `ember-source` gem.
Fix to use `Ember.ArrayPolyfills.forEach` for IE8
Skip profiling when `console` is undefined
Return `Ember.Array` instead of `Array`

IE doesn't support `Array#map`.
Use `on` and `off` for event listener

`element.addEventListener` / `element.removeEventListener` are not
supported in old IE.
Merge pull request #61 from tricknotes/ie8

Support IE8
Merge pull request #60 from tricknotes/update-libraries

Update libraries