ignoring venv
Made reference to installation instructions using virtualenv and pip.
Models and database setup script added.
updated README.md with info on setting up database tables
added __init__ functions for all models, plus joins between users and tags, moods and events
Added foreign keys to joined classes and to related __init__ functions
I had to change mysql location to be 127.0.0.1 for this to work. It was localhost. So if you're having problems installing please revert back
merging schema so I can use the databases for authentication