change year for the license file

Luis Romero · Luis Romero · commit f467c8fda03c · 2017-10-28T11:19:53.000-05:00
diff --git a/LICENSE.txt b/LICENSE.txt
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 SendGrid, Inc.
+Copyright (c) 2016-2017 SendGrid, Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
