replace mongo with postgres
fix npm warn about no repo
user repo converted to use postgres
use db-migrate
send json back instead of string
extract db utils to module, setup db-migrate config, use db-migrate config in db utils module
create user table migration
remove mongo db module
merge master
fix clean removing @ and . from emails
moved pg stuff to db utils
update readme
Merge pull request #7 from hankyates/postgres

Replace MongoDB with Postgres