DnD/X11: rename notifiers
DnD/X11: rename notifiers

As the notify functions don't notify anymore, they have to be renamed to
reflect their real job, i.e data preparers before calling user
functions.

tasn/elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,rvandegrift/elementary,FlorentRevest/Elementary,rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,FlorentRevest/Elementary