[skip] Added "name" to users (10m)
[skip] Coerce tags to lowercase, ensure that they're unique (3m)
[fix] Fixed updating and creating recipes (4m)
[improvement] Stored the author of each recipe (30m)
[skip] Fixed User Settings page (1m)
[skip] Renamed Effort to Difficulty (2m)
[skip] Replaced hard-coded ratings for Bob and Rachel; allowed users to specify their family members (1h)