Makes maildir files from the filesystem backend show as mail messages.

Index: Tiles/TileMailMessage.cs
===================================================================
RCS file: /cvs/gnome/beagle/Tiles/TileMailMessage.cs,v
retrieving revision 1.37
diff -u -B -p -r1.37 TileMailMessage.cs
--- Tiles/TileMailMessage.cs	19 Jul 2005 17:56:29 -0000	1.37
+++ Tiles/TileMailMessage.cs	16 Aug 2005 22:18:07 -0000
@@ -36,7 +36,9 @@ using Mono.Posix;
 namespace Beagle.Tile {
 
 	[HitFlavor (Name="Email", Rank=1100, Emblem="emblem-mail-message.png", Color="#f5f5f5",
-		    Type="MailMessage")]
+		    Type="MailMessage"),
+	 HitFlavor (Name="Email", Rank=1100, Emblem="emblem-mail-message.png", Color="#f5f5fe",
+		    Type="File", MimeType="message/rfc822")]
 	public class TileMailMessage : TileFromHitTemplate {
 
 		public TileMailMessage (Hit _hit) : base (_hit, "template-mail-message.html")