GF-59152: Check target of mousedown event instead of last pointed control…

…when deciding whether to unfreeze Spotlight.

Also, don't unfreeze if the default on the down event has been prevented.

Also, unspot when unfreezing during mouseDown.

Enyo-DCO-1.1-Signed-Off-By: Gray Norton (gray.norton@lge.com)
Merge pull request #111 from enyojs/GF-59152-graynorton-master

GF-59152: Check target of mousedown event instead of last pointed contro...