[BUGFIX] Allow Ember.Select to have selection from a Promise
when multiple=false
Update to htmlbars@0.2.0
Merge pull request #9765 from mmun/template-objects

Update to htmlbars@0.2.0
Merge pull request #9646 from BookingSync/select-promises

[BUGFIX] Allow Ember.Select to have selection from a Promise
Update to HTMLBars 0.3.0.

Fixes AST walker to be compatible with latest HTMLBars version (which
updated to latest Handlebars AST).
Merge pull request #9772 from rwjblue/htmlbars-ast-walker-update

Update to HTMLBars 0.3.0.
Failing tests for href, class, booleans, value
Introduce AttrNode, new HTMLBars attribute syntax
Port attrs and classes via bind-attr to AttrNode
Add SVG attribute support
Support maxlength and nonmatching reflections
Add a feature flag for attribute syntax
Remove some closures
Allow multiple classes per stream
Improve test names
inline-if test for classes should expect that feature flag
Add a test showing a disconnected attr nodes fail silenty
process classes with a special concat walker
Attributes PR cleanup
Unsubscribe from streams when an AttrNode's view is destroyed