Add copyright notice to LICENSE file.

LICENSE

diff --git a/LICENSE b/LICENSE
index 53320c3..a68e67f 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,3 +1,6 @@
+
+Copyright (c) 2011-2014 - Canonical Inc.
+
 This software is licensed under the LGPLv3, included below.
 
 As a special exception to the GNU Lesser General Public License version 3