Fix bugs in the agenda bulk action menu

The commands in the menu still reflected the old implementation which
had a single key for toggling the mark.

Reported by Giles Chamberlin

lisp/ChangeLog

@@ -1,5 +1,8 @@
 2009-09-07  Carsten Dominik  <carsten.dominik@gmail.com>
 
+	* org-agenda.el (org-agenda-menu): Fix bugs in the bulk action
+	menu.
+
 	* org-exp.el (org-export-remove-special-table-lines): Remove bad
 	slow regexp match.
 

lisp/org-agenda.el

@@ -1478,7 +1478,8 @@ The following commands are available:
      ["Refile" org-agenda-refile t])
     ["Delete subtree" org-agenda-kill t]
     ("Bulk action"
-     ["Toggle mark entry" org-agenda-bulk-mark t]
+     ["Mark entry" org-agenda-bulk-mark t]
+     ["Unmark entry" org-agenda-bulk-unmark t]
      ["Act on all marked" org-agenda-bulk-action t]
      ["Unmark all entries" org-agenda-bulk-remove-all-marks :active t :keys "C-u s"])
     "--"