ENH: Binstar build files

Files requires to build and automatically upload binary files to binstar
which will allow recent version to be installed by binary-only users of
conda.

[skip ci]
TST: Add testing against NumPy 1.9 and matplotlib 1.4
Merge pull request #1939 from bashtage/conda-binstar

BLD/ENH: Binstar build files
Merge pull request #1972 from bashtage/add-numpy-19-testing

BLD/TST: Add testing against NumPy 1.9 and matplotlib 1.4
BUG/ENH: BeanPlot separate width options, closes #1860

Add options to specify width for violin, bean, and bean mean.
Merge pull request #1861 joehand/beanplot_widths after rebase

BUG/ENH: BeanPlot width options, closes #1861
REF: Move webuse. Closes #1571.
REF: Lazy fix for circular import
DOC: Add webuse to datasets docs
STY: Pep-8 cleanup