Sphinxserve

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* Make default conf.py and index.rst configurable
* Implement simple debug levels
* Major code reorganization, cleanup and code simplification
* Fix pex binary distribution replacing subprocess rendering with
multiprocessing as pex cannot deal with shellscripts on packages.
* Improve coverage measurements of multiprocessing functional test
* Improve web logs (credits: Adam Coddington)
* Add signal handling to improve coverage measurements (credits: Sheila Allen)
* Major log improvements including color output (credits: Adam Coddington)
* Add python3 support. Improve webserver logic using bottle
instead of flask and ajax long polling instead of websockets.
Improve debugging. Improve tox build and tests.
Reduce and update dependencies
* Made output directory configurable (credits: Adam Coddington)

* Update README.rst
* Add travis-ci/github pex release integration for linux and OSX
* Add OSX testing to travis-ci
* Ensure sphinx detect rst changes
* Make sphinxserve OSX compatible
* dev version update

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* Remove external font requests. Cleanup
* Add README.rst badges
* Add default conf.py and index.rst. Improve cli processing and documentation
* Add travis-ci

* Make sphinxserve Windows compatible. Update documentation
* cleanup
* Make watchdog gevent cooperative. Update tests
* dev version update

* Improve pex Dockerfile. Expand pex and docker documentation

* Clarify python3 status
* Add tox pex and docker builds. Improve README.rst
* Refactor filesystem event detection with watchdog python package
* cleanup tox.ini
* Refactor page reloading, replacing xdotool system dependency with websockets
* Use sphinx building API. Add debugging
* Improve browser detection. Add interrupt signal cleanup
* dev version update