Add controller model property to documentation.
Named extend function
Merge pull request #5399 from twokul/named-extend-function

Named extend function
[BUGFIX beta] Use the jQuery polyfill for Node.prototype.contains
rather than playing whackamole with browsers
Transform dasherized properties to camelized in {{view}}.
[DOC beta] Add since tags for new APIs added to the 1.7.0 release.
Merge pull request #5404 from bmac/since-17

[DOC beta] Add since tags for new APIs added to the 1.7.0 release.
Merge pull request #5398 from rwjblue/move-dasherized-properties-to-camelized

Transform dasherized properties to camelized in {{view}}.
Merge pull request #5403 from bradleypriest/node-contains

[BUGFIX beta] Use the jQuery polyfill for Node.prototype.contains
[BUGFIX beta] Fix incorrect quoteless action warnings.
Merge pull request #5406 from rwjblue/fix-deprecation-warning

[BUGFIX beta] Fix incorrect quoteless action warnings.
[BUGFIX beta] Remove dead code in computed.intersect.
Merge pull request #5407 from rwjblue/remove-dead-code-in-intersect

[BUGFIX beta] Remove dead code in computed.intersect.
remove duplicate Ember.keys file and imports
Merge pull request #5409 from emberjs/remove-duplicate-ember-keys

remove duplicate Ember.keys file and imports
[Bugfix beta] Ember.keys works with null prototype objects correctly

* container uses this to work correctly in < IE8
cleanup, remove o_create from container tests (not used)
Merge pull request #5412 from stefanpenner/remove-extra-o-create

cleanup, remove o_create from container tests (not used)
Merge pull request #5411 from stefanpenner/object-keys

[Bugfix beta] User Ember.keys and it works with null prototype objects
fix trailing commas (old runtimes don’t like this...)