fix convert_color
Merge pull request #362 from ndawe/master

fix convert_color
__all__ in plotting.func and import F1, F2, F3 at plotting level
plotting.func: make name optional, override TH1.FillRandom to accept a TF1 directly
fix zorder in root2matplotlib.hist
PEP8
fix fill style and edge color for hatched histograms
fix hatch direction
Merge pull request #363 from ndawe/master

plotting.func improvements
check for ROOT and ROOT version in setup.py
remove deprecated open function and place staticmethod open on File. Fix open test by not using MemFile and cleaning up created file.
add io.pickler from ATLASOFF/PhysicsAnalysis/PyAnalysis/PyAnalysisUtils/trunk/python/root_pickle.py
PEP8
add pickler test
pickler docstrings
add a more complex io.pickler test and allow the dumping of pickles in directories
docstring
Merge pull request #367 from ndawe/root_version

check for ROOT and ROOT version in setup.py
Merge pull request #353 from ndawe/pickle

io.pickler: pickle python data into a ROOT file, preserving references to ROOT objects.
Merge pull request #368 from ndawe/file_cleanup

io cleanup