enyojs/enyo — pull request #342 by DavidUM (2013-07-09 06:50:30+00:00)
Title: Combine seperated custom events into one.

Actually, status of drawer could be distinguished with this.open
property.
So, custom event do not need to be seperated into onExpand and
onCollapse.

Enyo-DCO-1.1-Signed-off-by: David Um