[BUGFIX beta] Changed injected properties to behave like Ember.computed.reads
Fix default component layout
[BUGFIX beta] Use new transform syntax.

* Update to HTMLBars 0.5.0
* Make AST transforms not require Walker to be imported.
* Add some additional YUIDocs to Transform Factories.
[BUGFIX beta] Don’t assert uncaught RSVP rejections

Fixes #9901.

We already loudly log a stack trace, and the assert
ends up breaking everything else on the run loop
queue and given that it doesn’t even preserve a
meaningful stack trace related to the source of
error, it doesn’t add a lot of value (and causes
real problems a la #9901).
[BUGFIX beta] Allow tagName to be a CP with deprecation
[BUGFIX beta] Allow view instances in {{view}}
[BUGFIX beta] Ensure bound attrs flush immediately