Do not fade-in scrollbars if scrollview node has been deleted
Update Handlebars Makefile to prep for Handlebars.js upgrade.
Update Handlebars metadata to not require "escape" and use utils.

The most recent release of Handlebars makes it so we no longer have to
re-implement the "handlebars-utils" module.
Import Handlebars.js @ 1.0.rc.2.
Update Handlebars test to ignore empty-string test.

The Handlebars.js project changed the meaning of `isEmpty()` to return
`true` for empty strings. Since we no longer re-implement the
"handlebars-utils.js" file, this ignores the one failing test.

https://github.com/wycats/handlebars.js/commit/5f56d6
Update Handlebars documentation for upgrade.
Add Handlebars test for arrays as context objects.
Merge pull request #439 from julesanchez/fix-scrollview

Do not fade-in scrollbars if scrollview node has been deleted
Build scrollview
Merge remote-tracking branch 'upstream/dev-master' into dev-master
Fill out more Y.Model tests to increase coverage of code branches.
Add unit tests for Model's `id` aliasing feature.

**Note:** This identifies several problem areas with Model's current
implementation of its `id` aliasing feature. These areas are identified
by the "BUG" code comments.

Issue #446
Merge branch 'model-id-tests' into dev-master
Merge branch 'dev-master'
Remove out-of-sync modules list from App Framework's README.
Merge branch 'master' into dev-master
Merge branch 'dev-master' into dev-3.x
Merge branch 'handlebars-1.0.rc.2' into dev-3.x
Build Y.Handlebars @ 1.0.rc.2.