API Improvements

[cooperq]

• add project name to api table so IDs don't overwrite each other
• add dashboard for viewing API data
• api server crashes after 5 calls because we don't close the db connection
• improve api documentation

[cooperq]

Dashboard support added in 433e771

Production database schema has changed, users wishing to keep old production databases will have to run the following SQL:
ALTER TABLE tower_data ADD COLUMN api_key VARCHAR(32), ADD COLUMN ext_id INT, ADD COLUMN uploaded DATETIME;