* gladeui/glade-app.h, gladeui/glade-app.c: New method glade_app_new().

	* src/glade-project-window.h, src/glade-project-window.c: Renamed
	  to glade-window.h and glade-window.c respectively. GladeWindow now
	  subclasses GtkWindow instead of GladeApp (#449928).

svn path=/trunk/; revision=1433