Files modified by the conversion script 2to3.py
Disabled module new.

Module new has been removed in python3, replaced by new style classes.
Also commented out (for now) the factories part that relied on new.
Added rich comparison operators, since in python 3.x the __cmp__
operator is no longer supported for implementing the comparison.
Disabled suspicious division by 2.
Merge branch 'master' of https://github.com/apalazzi/PyGene into python3

Conflicts:
	pygene/organism.py
	pygene/prog.py