Fix Procfile
Fix lein min version
Added logging to show db map
Changed profiles in project.clj
Changed db connection to look up dynamically
Changed schema to use function for database connection
Changed database-url function to pick up system property
Changed database-url function to pick up env property
Add a main fn to schema.
Fix upload to create file if required
Change file-upload to create dir if it doesn't exist.
Added dependencies for selmer.