Added methods to extract mysql socket and port from a config file
Added mysql database name and config file path to app config
First cut at class to handle database interactions
Fixed syntax errors
Added methods to initialize DB connection and insert artist and album
Refined methods for inserting/querying artists and albums
Added function to insert a song into the DB from a set of tags
Added query to get song info from DB given a song ID
Fixed listing of each file
Made populating DB a separate script
Removed functions moved to build_db.rb script
Integrated database with main app