The Outputable class is now the base class of all the classes that want to
output formatted text. This is more object oriented and cleaner solution
compared to the previous implementation.
The responsibilities module shows a maximum of 10 files, per author, that each
author is responsible for. This fucntionality can be enabled by supplying -r
or --responsibilities to gitinspector. The parameter is also enabled if
--tda367 is specified.
