Merge from clutter.git/master
* clutter/glx/clutter-event-glx.c:
* clutter/glx/clutter-stage-glx.c: Implement the _NET_WM_PING
protocol handling on the main stage window.
* clutter/clutter-stage.h:
* clutter/clutter-stage.c:
* clutter/clutter-main.c: Handle CLUTTER_DELETE events internally,
by calling clutter_main_quit(), and remove the ::delete-event
signal from ClutterStage; clean up the signal emission sequence
for the events: emit the ::event signal before emitting any signal
and the ::event-after signal after the signal has been emitted; move
the signal emission calls inside ClutterStage so we can call
g_signal_emit() instead of g_signal_emit_by_name(), thus sparing us
a lookup for each event.
* examples/test.c: Remove ::delete-event signal handling.
a7a511ce79