Install cellect add Zookeeper to Vagrantfile
Add note about running a local Zookeeper
Add compound index on user_seen_subjects #80
Update Dockerfile and Vagrantfile to add Cellect
Have cellect load a user when the fetch a specific workflow
Add cellect support to classifications controller
Add subject controller random sort and specs
Add sample cellect config
Clean up debugging
Update cellect version and use testing helper
Use session to store cellect hosts
Improve specs with cellect cookies
Update db schema