Update to Ember 2.0 and Ember Data 2.0 and updates tests accordingly

[leifcr]

To be able to fix issue #245, this PR updates tests and the dummy app to use Ember 2.0 and Ember Data 2.0

Testing on travis is re-enabled on all branches, to be able to commit/test branches before requesting a PR.

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[leifcr]

@googlebot I signed it!

[tstirrat]

Fix this to a specific version, saves headaches later

[tstirrat]

Thanks for this! 😎 I've been on vacation, so I haven't had a good chance to properly look at it until now.

[googlebot]

CLAs look good, thanks!

[leifcr]

Thanks for looking at it!

[tstirrat]

Did you do any necessary upgrades to bower.json/package.json that this ember-cli upgrade needed?

It looks like the removal of Brocfile.js was not needed anymore due to the upgrade, is this correct?

[leifcr]

Yes, there is a siginifcant speed improvement on rebuild in 1.13.8. I'm seeing between 1 and 3 seconds rebuild time improvment here. Which saves time both for test and dev. And quite a few other fixes (https://github.com/ember-cli/ember-cli/blob/master/CHANGELOG.md)

Brocfile.js is removed as stated in the transition document for ember-cli (https://github.com/ember-cli/ember-cli/blob/master/TRANSITION.md#brocfile-transition). It could have been removed in 1.13.0, but the deprecation message starts from 1.13.5.

[tstirrat]

Thanks, just wanted to double check :)

[tstirrat]

bummer, I guess it didn't like that. lets restore the resolution and I will merge.

[halfdan]

Seems to be done ^