Add backbone-tastypie.js
Override save() in RawFractal model

Now, when a RawFractal is saved, a matrix file and a preview file
are generated from size, roughness and perturbance. The files are
uploaded to the rawFractFile and rawFractImg fields.
Backbone-tastypie.js everywhere.
Ignore docs.
Set up api

Currently, POST from backbone fails with 404.
Make fractalgen.calc a python module.