FIX THINGS! ... also move everything around.

Made `Gruntfile.js` a bit simpler-

 * No longer need to copy files
 * do livereloading with connect-livereload
 * run sphinx-build
 * two tasks - `default` is run and debug css, `build` will compile minified css.

Added requirements.txt, updated package.json

Made setup.py works - included correct files, reads requirements.txt and README.rst. version is now read correctly

Whole python package that's needed now resides in `sphinx_rtd_theme/`

Extraneous stuff is outside that folder

Added Gemfile for compass dependency

`compass.rb` now works in production or dev/debug environment (minifying css or not, as above)

README could probably do with a bit of modifying...

I branched off from 0edf123721b1e8951bc51b1145153881a591360a, so that sucks.