* thunarx/thunarx-menu-provider.{c,h}, thunarx/thunarx.symbols: Add a
	  new method get_dnd_actions() to the ThunarxMenuProvider, which allows
	  menu providers to install additional actions into the Drag'n'Drop
	  menu of the file manager.
	* docs/reference/thunarx/: Update the thunarx reference manual.
	* thunar/thunar-dnd.{c,h}, thunar/thunar-location-button.c,
	  thunar/thunar-shortcuts-view.c, thunar/thunar-standard-view.c,
	  thunar/thunar-tree-view.c: Insert the additional actions supplied
	  by the installed menu providers into the Drag'n'Drop menu.




(Old svn revision: 23151)