Do not use g_error for a few more errors, instead set the GError sent in

Do not use g_error for a few more errors, instead set the GError sent in

2008-02-29  Johan Dahlin  <johan@gnome.org>

	* gtk/gtkbuilder.c:
	* gtk/gtkbuilderparser.c:
	* gtk/gtkbuilderprivate.h:
	Do not use g_error for a few more errors, instead set
	the GError sent in through add_from_file/add_from_string.
	* tests/buildertest.c:
	Add a couple of new parsing tests.
	(#519199, Pavel Syomin)

svn path=/trunk/; revision=19681