v0.3.1, 20140703 -- add unittest
v 0.3 drop python2 support
v 0.2 update shields to support json configuration files, update setup.py,
support python3
v 0.1.4. date 20140527 begin to start support python3.3 
v 0.1.4 date 20-04-2014 add jail config files and small changes on run-jail
v 0.1.3.1 date 02-06-2012 -- 
    basic working updater-shell, missing setup rsbac attribue
v 0.1.2, date 20111611, -- update to version 0.1.2
v 0.1, date 20110916, -- Initial release.
