Converted everything to work correctly with the latest EAK.

This absurdly giant commit is mainly just a directory merge of the latest EAK and the current EAK Todos, minus the examples in EAK and the necessary files in Todos.

The primary only significant exceptions are that I used Ember 1.5.0-beta.1 and left the `composable-computed-properties` in the env config as it is used in the ```isLastRemaining``` method.

Tests pass on my machine, we'll see if Travis agrees.