Add rootpy.ROOT in the namespace for 'rootpy browse' as R & ROOT
Support slice assignment for Hists
Test new histogram slice assignment
Merge pull request #337 from ndawe/travis

travis: enable XML and HistFactory
Merge pull request #334 from pwaller/hist-slice-assign

Support slice assignment for Hists
Merge pull request #333 from pwaller/rootpy-browse-R

Add rootpy.ROOT in the namespace for 'rootpy browse' as R & ROOT
fix (#336) failing legend test by creating an invisible canvas
Merge pull request #339 from ndawe/master

fix failing legend test by creating an invisible canvas
begin histfactory wrappers
add generic fitting function
add histfactory subclasses
add RooStats to quickroot and use QROOT in histfactory
add first histfactory test and generate required dictionaries
subclass NormFactor
include NormFactor in histfactory test
more getters and setters for HistoSys
specify low and high in HistoSys __init__ and include utils in histfactory namespace
AddNormFactor: be flexible on args
add pythonized HistFactory::Channel
more setters and getters in Sample and Data