Merge pull request #208 from ekfriis/master

Minor usability improvements
log the filter status: active or in pass-through mode
log a warning if a filter returns None
mention valid Filter.passes return values
Merge pull request #206 from ndawe/master

Use logger in rootpy.tree.filtering
bootstrap distribute if setuptools is not installed
Merge pull request #209 from ndawe/master

bootstrap distribute if setuptools is not installed
show label on matplotlib example
Merge pull request #210 from ndawe/master

show label on matplotlib example
update flakes ignore file
bump version to 0.7.1
update manifest
update README
rm distribute in install_requires
include test.cxx in package_data
Merge pull request #211 from ndawe/master

minor changes before releasing 0.7.1
update mailmap
Merge pull request #214 from ndawe/master

update mailmap
more sane setup.py
DOCS: clean up conf, use numpydoc and trim down included modules for now