* gladeui/glade.h, gladeui/glade-app.[ch]:
          - Added a private initialisation function `glade_init_check()' for
            libgladeui.
          - Removed the 'bad' public variables that defined various installation
            paths. These paths can now be obtained from static class methods on
            GladeApp (static as in the Java and C++ sense).        
        
        * src/main.c, src/glade-project-window.c, gladeui/glade-catalog.c,
          gladeui/glade-binding.c, gladeui/glade-cursor.c,
          gladeui/glade-palette.c gladeui/glade-widget-adaptor.c, 
          gladeui/glade-utils.c, bindings/python/glade-python.c: Use the new
          GladeApp methods for obtaining installation paths.
          
        * gladeui/glade-palette-box.[ch]: Use G_DEFINE_TYPE() and
          g_type_class_add_private().

svn path=/trunk/; revision=1090