[fix] Fixed the Weekly Report (15m)

The code for communicating with Errbit was broken slightly by the recent replacement of Mongo with Postgres as Errbit's database {{err:8679}}
[skip] Added view_options to Project and User as well as APIs for updating them (45m)
[improvement] Scheduler: remembered your choice of 'Show Effort' (25m)
[feature] Allowed Project Owners to block tickets, moving them to "Discussion Needed"; allowed Owners and Maintainers to remove respective blocks (1h)
[skip] Yielded a better error message when creating a redundant Oauth token (2m)