Grouped fields are now unhighlighted when another field is clicked on.
Changed ungroup feature, user must now select the group in order to ungroup a FieldGroup.
Added nudging to field groups, also changed FieldGroup to use outline border to reduce visual artifact of fields being offset within a group.
Implemented FieldGroup copying.
Implemented the ability to delete and undelete a FieldGroup (with images).
Fixed bug - field groups were not loaded into the page correctl.