Log Message:
Updated advancecomp to 1.15.

ADVANCECOMP VERSION 1.15 2005/10
================================

* Fixed the date displayed with the -l advzip command.
* The advdef utility now detects the file type from the file
  header instead of using the extension.
* Fixed a lot of bugs in the 64 bits platforms.

ADVANCECOMP VERSION 1.14 2005/02
================================

* Relaxed a consistency check for the local header in zip files.
  The crc and size entries are allowed to contain the real
  value also if a data descriptor is present.
* Fixed the conversion of RGB images with less than 256 color
  with transparency data.
* Minor fixes at the documentation.