Adds Shotgun for development
Introduce User#single_access_token
Adds login_from_token
Enables /api/v1/projects.json
Enables /api/v1/projects/:id/builds.json

This endpoint allows to build the current HEAD of the project
Adds the token to top bar
Adds task to populate User#single_access_token
Adds tmp folder to git repo but ignore everything inside

This is required because one of the tests relies on the existance of
this folder