v.0.1.6 (2015_11_01)
o improved the string returned by size_as_str() : no more 'Go' (>'GB'), ...
o removed the _import_msg argument from msg()
o removed the 'verbosity' keyword from the cfg files and from the script
o improved a message in fill_select()
o 6 tests, pylint=10.0 for the three Python scripts
o version packaged and sent to Pypi (https://pypi.python.org/pypi/Katal)