Update license copyright info.

caesar0301 · caesar0301 · commit a268928e15c9 · 2015-04-30T15:38:51.000+08:00
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2014 Xiaming
+Copyright (c) 2014-2015 Xiaming Chen and other contributors to this list.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
