master
Heppy: reorganize generator level code to make it more general and split away parts that might be of more limited interest
[ANALYSIS] py2/3 compatibility:drop use of __future__
xrange mig
apply most of stage1 futurize tools
added PDF variables to PDF analyzer, leptonic tops to generator, LHE Nb/Nc/Nl/Ng, python/cpp wrapper gen
use all.py instead of __init__.py to imoprt everything so that pepople loading only one are not slowed down
heppy Added LHEWeights analyzer