Use a year range in the license

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2011, Tangent Communications PLC and individual contributors.
+Copyright (c) 2011-2014 Tangent Communications PLC and individual contributors.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification,
@@ -12,7 +12,7 @@ are permitted provided that the following conditions are met:
        documentation and/or other materials provided with the distribution.
 
     3. Neither the name of Tangent Communications PLC nor the names of its contributors 
-	   may be used to endorse or promote products derived from this software without
+       may be used to endorse or promote products derived from this software without
        specific prior written permission.
 
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND