Adding in new text for delete tasks.

calendar/resources/locale/en-US/menuOverlay.dtd

@@ -49,9 +49,12 @@
 <!ENTITY event.edit.event	"Edit">
 <!ENTITY event.edit.event.accesskey	"e">
 
-<!ENTITY event.delete.event	"Delete">
+<!ENTITY event.delete.event	"Delete Selected Event(s)">
 <!ENTITY event.delete.event.accesskey	"d">
 
+<!ENTITY event.delete.tasks	"Delete Selected Task(s)">
+<!ENTITY event.delete.tasks.accesskey	"t">
+
 <!ENTITY event.mail.event	"Mail Selected Event(s)">
 <!ENTITY event.mail.event.accesskey	"m">