Remove reference to therubyracer from README.md 

therubyracer doesn't currently work to build ember.js, and this patch removes an instruction to use it.
Corrects ember-application package description.
Fixes small typo in controllersFor deprecation
add Ember.computed.defaultTo
Fix typo in _resetSubControllers
Replaced old match().to() pattern with resource()/route()
Merge pull request #2103 from trek/fix-application-package-description

Corrects ember-application package description.
Merge pull request #2104 from trek/fix-spelling-in-deprecation-warning

Fixes small typo in controllersFor deprecation
Merge pull request #2105 from Alaneor/ArrayController-fix

Fix typo in ArrayController._resetSubControllers()
Merge pull request #2111 from rafshar/router-docs

Replaced old match().to() pattern with resource()/route()
Fixes #1523: bindAttr doesn't work when targeting var in {{#each var in x}}
Wrap Ember initialization in RunLoop - Fixes #2004
Additional cleanup to App initialization

Removes redundant domReady check. Also, when `Ember.testing` is set
`App.initialize()` must now be called manually.
Wrap domReady initialization callback in a RunLoop
Merge pull request #2112 from machty/each-var-bindattr-fix

Fixes #1523: bindAttr doesn't work when targeting var in {{#each var in x}}
Move Ember.Application docs into one place so YUIdoc doesn't lose half of it
Merge pull request #2130 from CrowdStrike/doc

Move Ember.Application docs into one place so YUIdoc doesn't lose half of it
Controllers are unwrapped

When a controller is passed to {{action}}, its
model is passed to the target
Move resolution logic to shared file
Unwrap controllers passed to {{linkTo}}