Rewrite of fullscreen toggling in linux. This goes back to using the EWMH specifications. I wasn't using it right before, but now it should work on all EWMH compliant window managers (like KDE, Metacity, Compiz, etc). Since this doesn't need an override redirect Alt-Tab works even in fullscreen mode. This also allows for some other nice things to be done.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5199 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/PluginSpecs/pluginspecs_wiimote.h

@@ -20,6 +20,9 @@ typedef struct
 {
 	HWND hWnd;
 #if defined HAVE_X11 && HAVE_X11
+#if defined(HAVE_GTK2) && HAVE_GTK2
+	void *pPanel;
+#endif
 	void *pXWindow;
 #endif
 	u32 ISOId;