* mail-vfolder.c (vfolder_gui_add_from_mlist): Rule to add mlist
	vfolder.

	* mail-autofilter.c (filter_gui_add_for_mailing_list): Removed.
	(rule_from_mlist): Build a generic match rule from an mlist.
	(vfolder_rule_from_mlist): Setup the vfolder rule for an mlist.
	(filter_rule_from_mlist): Setup a filter rule fro an mlist.
	(filter_gui_add_from_mlist): GUI thingy to do the work.

	* folder-browser.c (on_right_click): Added vfolder on mailing list
	to filter menu.
	(on_right_click): Use header_raw_check_mailign_list instead of
	mlist magic to get the mailing list name.
	(filter_mlist): Changed to use new add_from_mlist() call.
	(vfolder_mlist): New function for vfolder from mlist.

svn path=/trunk/; revision=8358