Fix doc status of dropPinnedRow, add cancelPinnedMode, update sample to support cancellation

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@palm.com)
Support reordering without pinned mode, switch sample to not use pinned mode for now as we're considering it a WIP feature for Enyo 2.2.

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@palm.com)
add safety test

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@palm.com>
Merge branch 'enyo'
Merge pull request #130 from clinuz/master

safer test
ENYO-1870: fix problem with dragging item on mobile to another page by keeping the DOM node of the original touch alive until the drag operation is over.

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@palm.com)
Fix unchecked removeChild call that caused problem on small drags

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@palm.com)