Modernised code and fixed minimal bugs from 1.0.1

• Code is no longer compatible with Python 2.5 and Python 2.6 (it could be, but it is not intended to).
• Code uses future and six to be as much compatible as possible with Python3 (still haven't finished this, but it is close)
• Code now passes flake8 and pylint. And follows PEP8.
• Documentation improved in several points
• Everything updated to work with latest releases of Pfam, hmmer, etc.

Minimal fixes from 1.0

v1.0.1

ConSAT now takes care of CPPD prefix