revert changes to control as we don't want to allow access to the disconnected dom node

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
remove the connectDom/disconnectDom path as it would not be able to be completed in a reasonable way and add warning in enyo.DataList to be careful about layouts used in the repeater that could cause it to lag with dynamic layouts

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
Merge pull request #377 from enyojs/remove-disconnect-dom-path

Remove disconnect dom path

Reviewed-By: Ben Combee (ben.combee@lge.com)