Version 0.4 (2004-03-06)
 - Fix simple bug (#4) in package definition that made CL-PNG unloadable.
 - Fix simple bug (#5) that made memory allocation in UNCOMPRESS-STRING
   slightly inefficient.
 - Fix bug (#6) that made CL-PNG not work at all on CMUCL.
Version 0.3 (2004-03-05)
 - Use compression and decompression code from libz (via UFFI) instead
   of the CL implementation.
 - Changes (mostly cosmetic) from Kevin Rosenberg's Debian package.