v0.5,   2013-02-10 -- Iterate over files.
v0.4,   2013-02-08 -- Modular parsers, error handling and measurements as class.
v0.3,   2013-02-01 -- Added ``--check`` option.
v0.2,   2013-01-31 -- Added ``--light`` option.
v0.1,   2013-01-30 -- Initial release.