Update Copyright date

Dan Allum · Dan Allum · commit 70c09ef44103 · 2015-01-21T11:17:45.000Z
diff --git a/shotgun_api3/shotgun.py b/shotgun_api3/shotgun.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 '''
  -----------------------------------------------------------------------------
- Copyright (c) 2009-2011, Shotgun Software Inc
+ Copyright (c) 2009-2015, Shotgun Software Inc
 
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:
