Began the SampleAPI class.

It is a factory for Request objects. It will offer methods for getting
random samples and then drilling down into their slices.
Merge branch 'master' of github.com:growse/CRUKGameJamTeamAwesome
Added the very basic SampleAPI class.

It currently makes a bad attempt at getting a random sample ID. Needs
work. Also set the frontend server to port 8080 and added ignore rules
for the virtualenv files.