Cleanup .travis.yml
Update supported ruby version

Ruby 1.9.2 seems to be no longer supported.
Because the security patch has not been applied to 1.9.2:
* http://www.ruby-lang.org/en/news/2013/06/27/hostname-check-bypassing-vulnerability-in-openssl-client-cve-2013-4073/
Merge pull request #1061 from tricknotes/update-ruby-version

Update supported ruby version
Merge pull request #1060 from tricknotes/cleanup-travis-yml

Cleanup .travis.yml
Remove option to specify router

Since the following commit, there is a failing test:
* emberjs/ember.js@58fd8c71

The reason is that the checking for lookup object in container was landed.
* https://github.com/emberjs/ember.js/commit/58fd8c71ea677cd4e1e97de5d50b105e9ec0d92d#L0R589

To fix this test, I removed `router: false` from application config.
bump ember-source version to 1.0.0-rc6.2
Fix ignored assertion

`stateEquals` requires two parameters.
Merge pull request #1073 from tricknotes/update-ember

Update ember with test fixes
Merge pull request #1074 from tricknotes/fix-assertion

Fix ignored assertion
properly set isUpdating flag and trigger didUpdate event

Previously isUpdating flag was set to false before the record array was populated with new records from the adapter. We defer didUpdate event to the end of the run loop in the same manner we do with findQuery didLoad event.