Merged DMD 2.060 frontend.

Upstream Git tag v2.060 (e8fe11c20249cb9e42538be88c99b74ede4d12e3).

dmd2/root/speller.c

@@ -1,4 +1,12 @@
 
+// Copyright (c) 2010-2012 by Digital Mars
+// All Rights Reserved
+// written by Walter Bright
+// http://www.digitalmars.com
+// License for redistribution is by either the Artistic License
+// in artistic.txt, or the GNU General Public License in gnu.txt.
+// See the included readme.txt for details.
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>