Add keybindings for del-word-left and del-word-right.

M EditorWindow.py
M NEWS.txt
M config-keys.def
M configHandler.py
diff --git a/Lib/idlelib/EditorWindow.py b/Lib/idlelib/EditorWindow.py
index 0f14662..31f400c 100644
--- a/Lib/idlelib/EditorWindow.py
+++ b/Lib/idlelib/EditorWindow.py
@@ -141,6 +141,8 @@
         text.bind("<<change-indentwidth>>",self.change_indentwidth_event)
         text.bind("<Left>", self.move_at_edge_if_selection(0))
         text.bind("<Right>", self.move_at_edge_if_selection(1))
+        text.bind("<<del-word-left>>", self.del_word_left)
+        text.bind("<<del-word-right>>", self.del_word_right)
 
         if flist:
             flist.inversedict[self] = key
@@ -386,6 +388,14 @@
                     pass
         return move_at_edge
 
+    def del_word_left(self, event):
+        self.text.event_generate('<Meta-Delete>')
+        return "break"
+
+    def del_word_right(self, event):
+        self.text.event_generate('<Meta-d>')
+        return "break"
+
     def find_event(self, event):
         SearchDialog.find(self.text)
         return "break"