Store passwords encrypted with bcrypt and a salt for secure storage
Replace int(x) columns with integer columns for postgresql.
Fix typo for the postgresql database type
Created Postgresql definitions for the timestamp fix migration.
Fixed problems with all zero date that is not allowed in PostgreSQL.
Remove if statement in assignment that doesn't work in PostgreSQL.
Changed default visited to 01-01-1910 to work around the invalid PostgreSQL date.
Merge bcrypt fix.