Update copyright date

git-svn-id: https://plcrashreporter.googlecode.com/svn/trunk@333 25172300-ee46-11dd-abe2-393a09110dd0

LICENSE

@@ -1,7 +1,7 @@
 Except as noted below, PLCrashReporter is provided under the
 following license:
 
-    Copyright (c) 2008 - 2009 Plausible Labs Cooperative, Inc.
+    Copyright (c) 2008 - 2011 Plausible Labs Cooperative, Inc.
     All rights reserved.
 
     Permission is hereby granted, free of charge, to any person