Added a CherryPy application and server configuration

This app and server combination serves the Sphinx static HTML files as
well as a simple short-URL redirect service, and the bootstrap redirect.
Extract paths out into an ini file
Add config for the server to drop privileges
Add docs note on specifying custom config file location
Added states to build the Salt docs
Added pillar.example file
Whitelist develop
Wrap build process in if-check for whitelisted versions
Added states to setup and run the sphinxdocs service
Updated placeholder URLs for bootstrap.saltstack.com
Made the placeholder docs paths slightly less me
We want to build for full releases not individual bugfix releases