Collabora copyright updates

which I forgot to add while working on these files.

Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
diff --git a/src/shell.c b/src/shell.c
index 752ebbf..c780610 100644
--- a/src/shell.c
+++ b/src/shell.c
@@ -1,6 +1,6 @@
 /*
  * Copyright © 2010 Intel Corporation
- * Copyright © 2011 Collabora, Ltd.
+ * Copyright © 2011-2012 Collabora, Ltd.
  *
  * Permission to use, copy, modify, distribute, and sell this software and
  * its documentation for any purpose is hereby granted without fee, provided