quotaholder: Unify accept and reject commission code
Incorporate accept/reject functions in resolve_pending_commissions,in order to enforce a total ordering on locking holdings.Add a wrapper (resolve_pending_commission) that operates on a singleserial.
Merge branch 'develop' into feature-quotas
Conflicts: snf-astakos-app/astakos/im/api/service.py snf-quotaholder-app/quotaholder_django/quotaholder_app/callpoint.py
Remove client_key parameter from quotas API
It is not necessary, since the service token in used for authorization.The api_method decorator is modified so that it passes to the methodthe service data through the request object.
API call for resources
API calls for quotas and commissions