Colorcet

Major release adding perceptually based categorical colormaps, complementing the previous perceptually based continuous colormaps:

- Added Glasbey 256-color categorical colormaps (25)
- Adding new continuous colormaps from CET (26)
- Added console script and docs to make it easy to run examples (23)
- Added colormap plotting commands in plotting.py (25)

Infrastructure update:
* Added travis and appveyor
* Switched to using nbsite, pyct.build, pyctdev,

Docs update:
* Migrated README content to docs
* Added usage section

Full list of changes since the previous release: https://github.com/pyviz/colorcet/compare/v1.0.0...v1.0.1

Minor update improving compatibility and ease of use:

* Added attribute access for colormap and palette dictionaries for convenience (PR 5)
* Pulled out the subset of colormaps that have readable names into the ``cm_n`` and ``palette_n`` dictionaries to make it simpler to use them in GUI widgets selecting colormaps
* Improved Python2/Python3 compatibility, now supporting Python 2.7, 3.4, 3.5, and 3.6.

Minor backwards compatibility issue:
* Renamed ``inferno`` to ``bmy`` to avoid confusion with matplotlib.

Bumped version because of incorrect github tag; no changes in functionality.

Initial version.