ENYO-3074: Fixed issue with tap event being sent after dragfinish event for non-Scroller controls; the tap event is always prevented when a dragfinish event is sent. Additionally, now-redundant calls to preventTap by Scroller controls have been removed.
Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>
Merge pull request #592 from enyojs/ENYO-3074-aarontam

ENYO-3074: Fixed issue with tap event being sent after dragfinish event

Reviewed-By: Ben Combee (ben.combee@lge.com)