Update copyrights
diff --git a/include/grpc/byte_buffer.h b/include/grpc/byte_buffer.h
index fa1fd24..c3a3943 100644
--- a/include/grpc/byte_buffer.h
+++ b/include/grpc/byte_buffer.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/byte_buffer_reader.h b/include/grpc/byte_buffer_reader.h
index 600bd38..9a1c617 100644
--- a/include/grpc/byte_buffer_reader.h
+++ b/include/grpc/byte_buffer_reader.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/census.h b/include/grpc/census.h
index 4ccf4af..39d87ba 100644
--- a/include/grpc/census.h
+++ b/include/grpc/census.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/compression.h b/include/grpc/compression.h
index 39023de..8de4b13 100644
--- a/include/grpc/compression.h
+++ b/include/grpc/compression.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/grpc.h b/include/grpc/grpc.h
index fe0cf28..0a03a8f 100644
--- a/include/grpc/grpc.h
+++ b/include/grpc/grpc.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/grpc_security.h b/include/grpc/grpc_security.h
index f2d04e5..a36926b 100644
--- a/include/grpc/grpc_security.h
+++ b/include/grpc/grpc_security.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/grpc_zookeeper.h b/include/grpc/grpc_zookeeper.h
index b23bd88..2b195c1 100644
--- a/include/grpc/grpc_zookeeper.h
+++ b/include/grpc/grpc_zookeeper.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/alloc.h b/include/grpc/impl/codegen/alloc.h
index 2351354..683c755 100644
--- a/include/grpc/impl/codegen/alloc.h
+++ b/include/grpc/impl/codegen/alloc.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/atm.h b/include/grpc/impl/codegen/atm.h
index 35b9750..5376026 100644
--- a/include/grpc/impl/codegen/atm.h
+++ b/include/grpc/impl/codegen/atm.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/atm_gcc_atomic.h b/include/grpc/impl/codegen/atm_gcc_atomic.h
index 196d2ae..8caf7ed 100644
--- a/include/grpc/impl/codegen/atm_gcc_atomic.h
+++ b/include/grpc/impl/codegen/atm_gcc_atomic.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/atm_gcc_sync.h b/include/grpc/impl/codegen/atm_gcc_sync.h
index 56f7559..915b09f 100644
--- a/include/grpc/impl/codegen/atm_gcc_sync.h
+++ b/include/grpc/impl/codegen/atm_gcc_sync.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/atm_win32.h b/include/grpc/impl/codegen/atm_win32.h
index 9d26462..7c1ccaf 100644
--- a/include/grpc/impl/codegen/atm_win32.h
+++ b/include/grpc/impl/codegen/atm_win32.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/byte_buffer.h b/include/grpc/impl/codegen/byte_buffer.h
index 9e96d4b..3ae8ac5 100644
--- a/include/grpc/impl/codegen/byte_buffer.h
+++ b/include/grpc/impl/codegen/byte_buffer.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/grpc_types.h b/include/grpc/impl/codegen/grpc_types.h
index b11f6ff..ab2d235 100644
--- a/include/grpc/impl/codegen/grpc_types.h
+++ b/include/grpc/impl/codegen/grpc_types.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/log.h b/include/grpc/impl/codegen/log.h
index afd8c5d..0853350 100644
--- a/include/grpc/impl/codegen/log.h
+++ b/include/grpc/impl/codegen/log.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/port_platform.h b/include/grpc/impl/codegen/port_platform.h
index 607511e..3242f07 100644
--- a/include/grpc/impl/codegen/port_platform.h
+++ b/include/grpc/impl/codegen/port_platform.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/slice.h b/include/grpc/impl/codegen/slice.h
index 03c59e7..c684b75 100644
--- a/include/grpc/impl/codegen/slice.h
+++ b/include/grpc/impl/codegen/slice.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/slice_buffer.h b/include/grpc/impl/codegen/slice_buffer.h
index 7191878..8ca51ba 100644
--- a/include/grpc/impl/codegen/slice_buffer.h
+++ b/include/grpc/impl/codegen/slice_buffer.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/status.h b/include/grpc/impl/codegen/status.h
index 814bb4c..29e4570 100644
--- a/include/grpc/impl/codegen/status.h
+++ b/include/grpc/impl/codegen/status.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/sync_generic.h b/include/grpc/impl/codegen/sync_generic.h
index 71443b5..75e85ae 100644
--- a/include/grpc/impl/codegen/sync_generic.h
+++ b/include/grpc/impl/codegen/sync_generic.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/sync_posix.h b/include/grpc/impl/codegen/sync_posix.h
index f6e0a91..3d08cc3 100644
--- a/include/grpc/impl/codegen/sync_posix.h
+++ b/include/grpc/impl/codegen/sync_posix.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/sync_win32.h b/include/grpc/impl/codegen/sync_win32.h
index 1a6596c..bdc43dd 100644
--- a/include/grpc/impl/codegen/sync_win32.h
+++ b/include/grpc/impl/codegen/sync_win32.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/impl/codegen/time.h b/include/grpc/impl/codegen/time.h
index b4f4509..381e267 100644
--- a/include/grpc/impl/codegen/time.h
+++ b/include/grpc/impl/codegen/time.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/status.h b/include/grpc/status.h
index 3889a16..67719b5 100644
--- a/include/grpc/status.h
+++ b/include/grpc/status.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/alloc.h b/include/grpc/support/alloc.h
index 649cb2b..8d03af8 100644
--- a/include/grpc/support/alloc.h
+++ b/include/grpc/support/alloc.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/atm.h b/include/grpc/support/atm.h
index 37975db..a52e2fb 100644
--- a/include/grpc/support/atm.h
+++ b/include/grpc/support/atm.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/atm_gcc_atomic.h b/include/grpc/support/atm_gcc_atomic.h
index 2fc8f60..ceda791 100644
--- a/include/grpc/support/atm_gcc_atomic.h
+++ b/include/grpc/support/atm_gcc_atomic.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/atm_gcc_sync.h b/include/grpc/support/atm_gcc_sync.h
index 4a61dbd..b996d4a 100644
--- a/include/grpc/support/atm_gcc_sync.h
+++ b/include/grpc/support/atm_gcc_sync.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/atm_win32.h b/include/grpc/support/atm_win32.h
index ebb6a67..13526d9 100644
--- a/include/grpc/support/atm_win32.h
+++ b/include/grpc/support/atm_win32.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/avl.h b/include/grpc/support/avl.h
index 2fe2d0b..d71592d 100644
--- a/include/grpc/support/avl.h
+++ b/include/grpc/support/avl.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/cmdline.h b/include/grpc/support/cmdline.h
index 55e2ffd..5b7bc82 100644
--- a/include/grpc/support/cmdline.h
+++ b/include/grpc/support/cmdline.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/cpu.h b/include/grpc/support/cpu.h
index 3ca83b5..6734feb 100644
--- a/include/grpc/support/cpu.h
+++ b/include/grpc/support/cpu.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/histogram.h b/include/grpc/support/histogram.h
index c34c8c8..c545038 100644
--- a/include/grpc/support/histogram.h
+++ b/include/grpc/support/histogram.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/host_port.h b/include/grpc/support/host_port.h
index 53cc917..1581954 100644
--- a/include/grpc/support/host_port.h
+++ b/include/grpc/support/host_port.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/log.h b/include/grpc/support/log.h
index e6f6dd9..3fdba04 100644
--- a/include/grpc/support/log.h
+++ b/include/grpc/support/log.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/log_win32.h b/include/grpc/support/log_win32.h
index 49c9ab0..e5c25e0 100644
--- a/include/grpc/support/log_win32.h
+++ b/include/grpc/support/log_win32.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/port_platform.h b/include/grpc/support/port_platform.h
index 6b14f8b..7465a0e 100644
--- a/include/grpc/support/port_platform.h
+++ b/include/grpc/support/port_platform.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/slice.h b/include/grpc/support/slice.h
index b3a73b2..b45db03 100644
--- a/include/grpc/support/slice.h
+++ b/include/grpc/support/slice.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/slice_buffer.h b/include/grpc/support/slice_buffer.h
index 7bee4dd..cf7a89f 100644
--- a/include/grpc/support/slice_buffer.h
+++ b/include/grpc/support/slice_buffer.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/string_util.h b/include/grpc/support/string_util.h
index 6fc38cb..0abdb4a 100644
--- a/include/grpc/support/string_util.h
+++ b/include/grpc/support/string_util.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/subprocess.h b/include/grpc/support/subprocess.h
index e013b70..2baa43e 100644
--- a/include/grpc/support/subprocess.h
+++ b/include/grpc/support/subprocess.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/sync.h b/include/grpc/support/sync.h
index 89cc76f..a014580 100644
--- a/include/grpc/support/sync.h
+++ b/include/grpc/support/sync.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/sync_generic.h b/include/grpc/support/sync_generic.h
index 28e3ab6..d74b5d8 100644
--- a/include/grpc/support/sync_generic.h
+++ b/include/grpc/support/sync_generic.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/sync_posix.h b/include/grpc/support/sync_posix.h
index fa0324f..19aca03 100644
--- a/include/grpc/support/sync_posix.h
+++ b/include/grpc/support/sync_posix.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/sync_win32.h b/include/grpc/support/sync_win32.h
index bfbc99e..5631c52 100644
--- a/include/grpc/support/sync_win32.h
+++ b/include/grpc/support/sync_win32.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/thd.h b/include/grpc/support/thd.h
index abe57eb..0514288 100644
--- a/include/grpc/support/thd.h
+++ b/include/grpc/support/thd.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/time.h b/include/grpc/support/time.h
index 2c7f853..b3f2f8c 100644
--- a/include/grpc/support/time.h
+++ b/include/grpc/support/time.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/tls.h b/include/grpc/support/tls.h
index 0ff19bb..a45e1f0 100644
--- a/include/grpc/support/tls.h
+++ b/include/grpc/support/tls.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/tls_gcc.h b/include/grpc/support/tls_gcc.h
index 21269e4..a47275f 100644
--- a/include/grpc/support/tls_gcc.h
+++ b/include/grpc/support/tls_gcc.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/tls_msvc.h b/include/grpc/support/tls_msvc.h
index 751ec35..efc653b 100644
--- a/include/grpc/support/tls_msvc.h
+++ b/include/grpc/support/tls_msvc.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/tls_pthread.h b/include/grpc/support/tls_pthread.h
index 93ba782..e681da2 100644
--- a/include/grpc/support/tls_pthread.h
+++ b/include/grpc/support/tls_pthread.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/include/grpc/support/useful.h b/include/grpc/support/useful.h
index a0e76da..003e096 100644
--- a/include/grpc/support/useful.h
+++ b/include/grpc/support/useful.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without