This library version is based on JBDiff (http://www.wombat.ie/software/jbdiff/downloads/jbdiff-0.1.1.tar.gz)
which is also available under the OSI Approved :: BSD License (original)
http://www.opensource.org/licenses/bsd-license.html

Version 0.1.0.1
 - Extended interface so that it is not only file based and uses GZIP compressor for all data structures.