Log Message:
Update GraphicsMagick to 1.3.16.

1.3.16 (June 24, 2012)
==========================

Security Fixes:

  * Don't translate 'comment' and 'label' attributes if the request is
    made while a file is being read.  Only translate such attributes
    if they come from the command line or API user.

Bug fixes:

  * SWT: SWT reader suffered from a number of implementation errors
         which caused it not to work any more.  Works again.

  * XBM: Fix memory leak observed when reading file in 'ping' mode.

  * Support -trim on images which use a consistent (single color)
    transparent background.  In this case, trim is done based on
    opacity rather than foreground color.

  * Include <sys/types.h> in order to assure that 'size_t' and
    'ssize_t' are declared.  This is necessary since
    MagickExtentImage() uses these types as part of its definition.

  * +repage was not working because parser was insisting that it
    should include an argument.

  * -units was scaling existing resolution the wrong way around
     (i.e. multiplying rather than dividing).

  * PerlMagick: Fix compilation with Perl 5.16.

  * PingBlob(): PingBlob was not working for all cases.  Is now based
    on BlobToImage() for assured reliability.

New Features:

  None

Feature improvements:

  * MAT: Animated movies inside 4D matrices are loaded now.

  * PDF: File base name is used as the document title.

  * PNG: Fix issues observed specifically with libpng 1.5.10.

Performance Improvements:

  * Pixel iterators should be more efficient now if the image uses a
    file-backed cache.

  * Motion blur algorithm does scale well as cores are added so
    include OpenMP support for it by default.

Windows Delegate Updates:

  * JPEG: Updated to IJG 8d release.

  * PNG: Updated to 1.5.11 release

  * TIFF: Updated to 4.0.2 release.

  * Zlib: Updated to 1.2.7 release.

  * libxml2: Updated to 2.8.0 release.

Behavior Changes:

  None