Log Message:
Update GraphicsMagick to 1.2.4.

1.2.4 (June 29, 2008)
====================

Security Fixes:

  * AVI reader: Re-worked to be more robust against crash or DOS.

  * AVS reader: Re-worked to be more robust against crash or DOS.

  * DCM reader: Re-worked to be more robust against crash or DOS.

  * EPT reader: Re-worked to be more robust against crash or DOS.

  * FITS reader: Re-worked to be more robust against crash or DOS.

  * MTV reader: Re-worked to be more robust against crash or DOS.

  * PALM reader: Re-worked to be more robust against crash or DOS.

  * RLA reader: Re-worked to be more robust against crash or DOS.

  * TGA reader: Re-worked to be more robust against crash or DOS.

  * Avoid possible crash in GetImageCharacteristics() when substituting
    text in comment read from file.

Bug fixes:

  * Magick++ Image Quantize was not supporting error measurement properly
    and was waisting time with redundant SyncImage().

  * The --enable-magick-compat configure option was not being respected
    by the Makefiles (SourceForge bug 2005883).