* doc/tmpl/*.sgml: removed every extra documentation, we keep them empty just
  because otherwise the build fails.

* doc/gladeui-docs.sgml, doc/gladeui-sections.txt, doc/gladeui.types: updated
  (GladeWidgetClass  replaced by GladeWidgetAdaptor)

* gladeui/glade-editor.c, gladeui/glade-editor-property.c, gladeui/glade-parameter.c,
  gladeui/glade-widget.c, gladeui/glade-fixed.c, gladeui/glade-clipboard.c,
  gladeui/glade-inspector.[ch], gladeui/glade-widget-adaptor.[ch], gladeui/glade-command.c,
  gladeui/glade-command.h, gladeui/glade-base-editor.[ch], gladeui/glade-palette.[ch],
  gladeui/glade-utils.c, gladeui/glade-signal-editor.c, gladeui/glade-app.c,
  gladeui/glade-placeholder.c, gladeui/glade-property.c, gladeui/glade-property-class.c,
  gladeui/glade-project.c, gladeui/glade-clipboard-view.c:
  Added section's short and long description. (moved from tmpl)


svn path=/trunk/; revision=1523