Created hook responseAlter to allow changing a response right before it is sent.
Fixed wrong variable usage.
Merge branch 'fs/response-alter' into fs/empty-regions
Altered layout responses to send emptneess information about regions.
Handle regions that are both panel-region and wrappers.
Updated templates to be aware of empty regions.
Updated panel.responseAlter hook usage.
Merge branch 'fs/response-alter' into taller

Conflicts:
	applications/default/extensions/route/lib/route-controller.js
Merge branch 'fs/empty-regions' into taller
Fixed variable name.