* gladeui/glade-widget-adaptor.[ch]: fixed bogus type punned warnings adding a 
  local variable in gwa_extend_with_node_load_sym() as pointed by galtgendo@o2.pl
  (bug 435912)

* gladeui/glade-xml-utils.[ch]: glade_xml_load_sym_from_node() now returns
   wheater or not the symbol was found.

svn path=/trunk/; revision=1319