Update zlib to 1.2.11

third_party/zlib/LICENSE

Index: third_party/zlib/LICENSE
diff --git a/third_party/zlib/LICENSE b/third_party/zlib/LICENSE
index babc0f08940fa7b7972926929fd193903d4d4324..9f056865b5719d4559a7773ca69382b942cb2b02 100644
--- a/third_party/zlib/LICENSE
+++ b/third_party/zlib/LICENSE
@@ -1,27 +1,19 @@
-/* zlib.h -- interface of the 'zlib' general purpose compression library
-  version 1.2.4, March 14th, 2010
+version 1.2.11, January 15th, 2017
 
-  Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
+Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
 
-  This software is provided 'as-is', without any express or implied
-  warranty.  In no event will the authors be held liable for any damages
-  arising from the use of this software.
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
 
-  Permission is granted to anyone to use this software for any purpose,
-  including commercial applications, and to alter it and redistribute it
-  freely, subject to the following restrictions:
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
 
-  1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-  2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-  3. This notice may not be removed or altered from any source distribution.
-
-  Jean-loup Gailly
-  Mark Adler
-
-*/
-
-mozzconf.h is distributed under the MPL 1.1/GPL 2.0/LGPL 2.1 tri-license.
+1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.