Release Notes: Updated to use librsync 0.9.6. TODO and NEWS files have been added. Changed to use psyco if available, giving a 33% speedup. Changed to using a faster md4sum implementation based on the librsync implementation, and modified to use the RSA API. Rollin/rollout support has been added to historic adler32.py. There are minor cleanups to the rollsum code, and minor tweaks to the handling of block fragment matching.