Rename models.migration ns to db
db: Don't create user_types table

We're only going to have an admin account type, so this is irrelevant.
Use 11 character SHA1 hash for record IDs

Issue #213.
log: Add notes for Wednesday
Bump release version for '0.3.11'
Apply Clojure linter style recommendations
Merge branch 'release/0.3.11'