Revision history for App-bk

0.06    19th August 2013
        Add in '-d' option to show file differences between current 
            and previous version
        Amend module prereq's

0.05    11th July 2011
        Fixes to tests for cpantesters.org

0.04    7th July 2011
        Change tests to ensure backed up file is writable before amending

0.03    28th June 2011
        Correct use of BAIL_OUT in tests

0.02    24th June 2011
        Allow tests to be run as root user
        Improve documentation
        Disallow building on Windows servers

0.01    23rd May 2011
        First version, released on an unsuspecting world.