Billing WIP
Merge branch 'billing' of github.com:kili/dashboard into billing
use project_id instead of user_id
satisfy flake8
rename gather_stats > bill_users, more appropriate
use the new ceilometer wrapper
fix tests
receive payments on tenant_id, instead of user
fix flake8
WIP (Pre proj_id accounts)
Merge branch 'billing' of github.com:kili/dashboard into billing
add __unicode__ methods to model
WIP- Paywall but no tests
Merge branch 'billing' of github.com:kili/dashboard into billing