added user and notification model and controller
finished models
Merge branch 'master' of https://github.com/lrakhman/parkstorm into models_and_migrations
Merge pull request #1 from kaplali/models_and_migrations

Models and migrations
merging changes to models
Merge branch 'master' of https://github.com/kaplali/parkstorm into configure_regions_db
add custom query methods to region model
add directions for setting up the postgres database
adding reference files
Merge branch 'configure_regions_db' of https://github.com/kaplali/parkstorm into configure_regions_db