Merge pull request #5 from stanley-cheung/wrap_php7_on_v1_branch

update copyright

src/php/ext/grpc/php7_wrapper.h

@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without