Log Message:
Update libmodplug to 0.8.8.2.
While here, set LICENSE=public-domain.

* 2 April 2011: libmodplug 0.8.8.2
 * Improve compatibility with MSVC 2010
 * Improve PTM playback (Fix byteswapping)
 * Improve S3M support (ignore corrupted data)
 * Improve AMF support (bounds checking)
 * See git checkins for more information
* 27 May 2010: libmodplug 0.8.8.1
 * Add check to make sure Stereo Separation/MixChannels cannot be 0.
 * Increment soname due to structure change (addition of new config options)
* 5 April 2010: libmodplug 0.8.8
 * Fix 32 to 32 bit "downsampling" on 64bit platforms.
 * Fix usage of bigendian in include files
 * Fix PSM files on bigendian computers
 * Allow configuration of Stereo Separation and MaxMixChannels
 * Fix possible problem with misaligned data structure when converting to int32
  (load_669)
 (Developer only) update to new automake/autoconf.