Add Ember.DataAdapter in ember-extension-support
Merge pull request #3129 from teddyzeenny/extension

Add Ember.DataAdapter in ember-extension-support
Add rel attribute binding to linkTo helper
Merge pull request #3131 from gdub22/linkto-rel

Add rel attribute binding to linkTo helper
Remove obsolete paragraph from ObjectController comments
Merge pull request #3135 from alexspeller/objectcontroller-docs

Remove obsolete paragraph from ObjectController comments