Bug #266597 --> Keybinding requested for flagging messages. Make 'I' toggle the flagged state for messages.

Patch by mnyromyr  (mnyromyr@tprac.de)

r/sr=bienvenu,me

mail/base/content/mailWindowOverlay.xul

@@ -328,6 +328,7 @@
   <key id="key_selectThread" key="&selectThreadCmd.key;"             oncommand="goDoCommand('cmd_selectThread');" modifiers="accel, shift"/>
   
   <key id="key_toggleRead" key="&markAsReadCmd.key;"                 oncommand="goDoCommand('cmd_markAsRead');"/>
+  <key id="key_toggleFlagged" key="&markFlaggedCmd.key;"             oncommand="goDoCommand('cmd_markAsFlagged');"/>
   <key id="key_markJunk" key="&markAsJunkCmd.key;"                   oncommand="goDoCommand('cmd_markAsJunk');"/>
   <key id="key_markNotJunk" key="&markAsNotJunkCmd.key;"             oncommand="goDoCommand('cmd_markAsNotJunk');"
        modifiers="shift"/>
@@ -1592,7 +1593,12 @@
             <menuitem label="&markReadByDateCmd.label;" key="key_markReadByDate" accesskey="&markReadByDateCmd.accesskey;" command="cmd_markReadByDate"/>
             <menuitem label="&markAllReadCmd.label;" key="key_markAllRead" accesskey="&markAllReadCmd.accesskey;" observes="cmd_markAllRead"/>
             <menuseparator/>
-            <menuitem type="checkbox" id="markFlaggedMenuItem" label="&markFlaggedCmd.label;" accesskey="&markFlaggedCmd.accesskey;" observes="cmd_markAsFlagged"/>
+            <menuitem id="markFlaggedMenuItem" 
+                      type="checkbox" 
+                      key="key_toggleFlagged"
+                      label="&markFlaggedCmd.label;" 
+                      accesskey="&markFlaggedCmd.accesskey;" 
+                      observes="cmd_markAsFlagged"/>
             <menuseparator/>
             <menuitem label="&markAsJunkCmd.label;" 
                       key="key_markJunk"

mail/locales/en-US/chrome/messenger/messenger.dtd

@@ -364,6 +364,7 @@
 <!ENTITY markAllReadCmd.key "c">
 <!ENTITY markFlaggedCmd.label "Flag">
 <!ENTITY markFlaggedCmd.accesskey "F">
+<!ENTITY markFlaggedCmd.key "i">
 <!ENTITY markAsJunkCmd.label "As Junk">
 <!ENTITY markAsJunkCmd.accesskey "J">
 <!ENTITY markAsJunkCmd.key "j">