Update bundled freetype to 2.6.1

third_party/freetype/include/freetype/ftrender.h

Index: third_party/freetype/include/freetype/ftrender.h
diff --git a/third_party/freetype/include/ftrender.h b/third_party/freetype/include/freetype/ftrender.h
similarity index 94%
rename from third_party/freetype/include/ftrender.h
rename to third_party/freetype/include/freetype/ftrender.h
index e8d36363ca6d224969cbb5b804e9450da150b178..ec8da700b144ed413c84d5f740b99164aea3a6d2 100644
--- a/third_party/freetype/include/ftrender.h
+++ b/third_party/freetype/include/freetype/ftrender.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    FreeType renderer modules public interface (specification).          */
 /*                                                                         */
-/*  Copyright 1996-2001, 2005, 2006, 2010 by                               */
+/*  Copyright 1996-2015 by                                                 */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -212,13 +212,8 @@ FT_BEGIN_HEADER
   /*                                                                       */
   /*    This doesn't change the current renderer for other formats.        */
   /*                                                                       */
-  /*    Currently, only the B/W renderer, if compiled with                 */
-  /*    FT_RASTER_OPTION_ANTI_ALIASING (providing a 5-levels               */
-  /*    anti-aliasing mode; this option must be set directly in            */
-  /*    `ftraster.c' and is undefined by default) accepts a single tag     */
-  /*    `pal5' to set its gray palette as a character string with          */
-  /*    5~elements.  Consequently, the third and fourth argument are zero  */
-  /*    normally.                                                          */
+  /*    Currently, no FreeType renderer module uses `parameters'; you      */
+  /*    should thus always pass NULL as the value.                         */
   /*                                                                       */
   FT_EXPORT( FT_Error )
   FT_Set_Renderer( FT_Library     library,