Update GraphicsMagick to 1.3.9.

1.3.9 (February 4, 2010)
========================

Security Fixes:

  * None

Bug fixes:

  * Fix "double free" error when using gm import -frame.

  * XPM does not support RGBA color syntax, so return RGB instead.

  * The display '-update' option was only working in conjunction with
    the '-delay' option with a delay setting of 2 or greater.

  * For formats which support multiple frames, output with +adjoing to
    filenames containing a scene specification (e.g. foo%02d.tiff) was
    resulting in wrong output file names.

  * -convolve was crashing rather than reporting an error.

  * Fixed crash if the number of OpenMP threads was reduced from the
    original value via '-limit threads' or omp_set_num_threads().

  * -blur was not blurring the opacity channel for solid-color images.

  * When installing HTML documentation, many files were included which
    are not part of the formatted documentation.

  * Several deleted global string constants are restored with
    deprecated status in order to assure that symbols are not removed
    from the ABI.

New Features:

  * None

Feature improvements:

  * None

Performance Improvements:

  * None

Behavior Changes:

  * There is no longer an implicit 'adjoin' if an output filename
    contains an apparent scene specification (e.g. foo%02d.tiff) and
    multiple files are not needed to save the image..  It is necessary
    to use +adjoin.  For example ``gm convert foo.pdf +adjoin
    %02d.tiff``.

  * -flatten now applies the image background color under the first
    image in the list if it is not already opaque.

(obache)