* configure.in: Require gtkdocize 1.4

	* doc/Makefile.am: Ignore glade-popup.h

	* doc/children.sgml, doc/gladeui-docs.sgml, doc/tmpl/glade-app.sgml,
	  doc/tmpl/glade-project.sgml: Doc updates.

	* src/glade-project.c: Made project signals have object type args for
	  GladeWidgets (of type GLADE_TYPE_WIDGET).

	* src/glade-widget.c: GladeWidget GType is now registered as "GladeWidget"
	  and not "Gladewidget".