Updated Copyright Years

Updated copyright years on all applicable files
diff --git a/googleapiclient/errors.py b/googleapiclient/errors.py
index ef2b161..b03c6e3 100644
--- a/googleapiclient/errors.py
+++ b/googleapiclient/errors.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python2.4
 #
-# Copyright (C) 2010 Google Inc.
+# Copyright (C) 2014 Google Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.