Merge pull request #1304 from maml/master

A few grammar corrections for documentation in router.js
Ember.View: Fix code sample indentation for ternary operation in class name bindings.
Ember.View: Fix more code example indentation.
Merge pull request #1270 from lukemelia/document-alias

Add API doc for Ember.alias
Merge pull request #1305 from josemota/fix-docs

Ember.View: Fix code sample indentation for ternary operation in class name bindings
Merge pull request #1300 from jdjkelly/master

bindAttr fails to render pathless class names in IE8
Add test for selecting in multi selects with prompts
Merge pull request #1232 from lcoq/patch-2

Rakefile :clean remove 'tmp' folder
ContainerViews should invalidate `element` on children when rendering.
Separates Ember.Select feature documentation into more discreet chunks.
Merge pull request #1319 from trek/ExpandedDocumentationForSelect

Separates Ember.Select feature documentation into more discreet chunks.
Fixing Ember.Router.route when rootURL is used
Fix formatURL to use rootURL and remove formatPath
Fix a bug in multi-selects with primitive options

The single select code path handled this case but the multi-select
did not.
Provide default args to tryInvoke - fixes #1327
Merge pull request #1326 from nearbuy/multi-select-number

Fix a bug in multi-selects with primitive options
Merge pull request #1324 from digitaltoad/bug/fix_routing_when_rooturl_used

Fixing Ember.Router.route when rootURL is used
Merge pull request #1296 from sly7-7/collection-helper-doc

update collection helper documentation against view context change
Merge pull request #1286 from jankopriva/master

Add #setObjects to mutable array. A helper for replacing whole content of the array with a new one
Adding rootURL test for formatURL