Don't bother with Ember.run.once, as we can detect an impending flush
by inspecting the size of the local queue of _deferredTriggers

This should mitigate some costly run-loop pressure.

Inspired to help with: https://github.com/ebryn/backburner.js/issues/51
another quick fix, which should reduce run-loop pressure.
update ember
Remove unused helper.
Merge pull request #1686 from abuiles/remove-unused-code

Remove unused helper.
Merge pull request #1544 from stefanpenner/be-nice-to-the-run-loop

Don't bother with Ember.run.once, if we can detect an impending flush
DateTransform serializes as a number instead of string. The deserializer was already considering this case. Adds millisecond precision to DateTransform
Calls rake test[all] using bundle exec since CI was failing

https://travis-ci.org/emberjs/data/builds/16487436
Post release version bump.
Merge branch 'master' of https://github.com/emberjs/data into es6