Update bundled freetype to 2.6.1

third_party/freetype/include/freetype/ftimage.h

Index: third_party/freetype/include/freetype/ftimage.h
diff --git a/third_party/freetype/include/ftimage.h b/third_party/freetype/include/freetype/ftimage.h
similarity index 98%
rename from third_party/freetype/include/ftimage.h
rename to third_party/freetype/include/freetype/ftimage.h
index 2f7ca2aaf55bd2cbe84da27fcf469cf7633fe6bb..82f284c4f9879fcaa06d93e7569ad35e63ee4e86 100644
--- a/third_party/freetype/include/ftimage.h
+++ b/third_party/freetype/include/freetype/ftimage.h
@@ -5,7 +5,7 @@
 /*    FreeType glyph image formats and default raster interface            */
 /*    (specification).                                                     */
 /*                                                                         */
-/*  Copyright 1996-2010, 2013, 2014 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,       */
@@ -258,11 +258,6 @@ FT_BEGIN_HEADER
   /*                    field is intended for paletted pixel modes.  Not   */
   /*                    used currently.                                    */
   /*                                                                       */
-  /* <Note>                                                                */
-  /*   For now, the only pixel modes supported by FreeType are mono and    */
-  /*   grays.  However, drivers might be added in the future to support    */
-  /*   more `colorful' options.                                            */
-  /*                                                                       */
   typedef struct  FT_Bitmap_
   {
     unsigned int    rows;
@@ -1078,10 +1073,10 @@ FT_BEGIN_HEADER
   /*    FT_Raster_ResetFunc                                                */
   /*                                                                       */
   /* <Description>                                                         */
-  /*    FreeType provides an area of memory called the `render pool',      */
-  /*    available to all registered rasters.  This pool can be freely used */
-  /*    during a given scan-conversion but is shared by all rasters.  Its  */
-  /*    content is thus transient.                                         */
+  /*    FreeType used to provide an area of memory called the `render      */
+  /*    pool' available to all registered rasters.  This was not thread    */
+  /*    safe however and now FreeType never allocates this pool.  NULL     */
+  /*    is always passed in as pool_base.                                  */
   /*                                                                       */
   /*    This function is called each time the render pool changes, or just */
   /*    after a new raster object is created.                              */
@@ -1094,10 +1089,9 @@ FT_BEGIN_HEADER
   /*    pool_size :: The size in bytes of the render pool.                 */
   /*                                                                       */
   /* <Note>                                                                */
-  /*    Rasters can ignore the render pool and rely on dynamic memory      */
+  /*    Rasters should ignore the render pool and rely on dynamic or stack */
   /*    allocation if they want to (a handle to the memory allocator is    */
-  /*    passed to the raster constructor).  However, this is not           */
-  /*    recommended for efficiency purposes.                               */
+  /*    passed to the raster constructor).                                 */
   /*                                                                       */
   typedef void
   (*FT_Raster_ResetFunc)( FT_Raster       raster,