ENYO-3552: Revert a bit of the capture changes, to remove the captureFilter API, as we've found a way to route custom events through the normal dispatcher path, with the minor addition of a flag to check to determine whether to prefix event names with "on" or not.  Also change capture to call a callback to notify the captureTarget of captured events, rather than using the normal bubble path.  Update enyo.Popup to use these changes.
DCO-1.1-Signed-Off-By: Kevin Schaaf <kevin.schaaf@lge.com>