add: support for finding unknown sources.

Merge pull request #1 from AlbertWeichselbraun/feature/compact-cdiff-format

chg: implemented support for simplified cdiff format.

add: setup.py

fix: correctly handle relative paths in unittests.

start: rewrite for simplified cdiff format.

chg: improved command line interface and docu

fix: HTML conversion problem in case of multiple calls.

chg: added command line client.

add: rudamentary support for restoring cdiff files :)

chg: refactoring for corpus restore.

chg: README from text to markup.

Initial version.

Initial commit