Bug #217149 --> Add a menu item under file for opening a .eml file from the desktop. Move the Open Message menu item under File over to the Messages menu where it really belongs.

This allows thunderbird to open .eml files.

patch by Robert Accettura and David Bienvenu

sr=mscott
a=asa for the one line property string addition in messenger.properties

mailnews/base/resources/locale/en-US/messenger.properties

@@ -41,6 +41,7 @@ replyToSender=Reply to Sender
 reply=Reply
 # LOCALIZATION NOTES(EMLFiles): Do not translate "*.eml" in the line below
 EMLFiles=Mail Files (*.eml)
+OpenEMLFiles=Open Message
 # LOCALIZATION NOTES(defaultSaveMessageAsFileName): Do not translate ".eml" 
 # in the line below.  Also, the complete file name should 8.3
 defaultSaveMessageAsFileName=message.eml