Environment variable for local db

[ronovan]

Before running tests/local server, to point at the local db run export LOCAL=True on the command line so that it connects to a local database instead of the production one.

[ronovan]

Addresses issue #180

[ronovan]

Hence, no way for any of us to clear the prod server to be cleared by running python __init__.py.

This is true because clear database calls are only called if the export LOCAL=True command was run, and if this command was run then the server would be connect to a local database, not the production one.

[kathleen-lu]

thanks ron!!!!!

[ronovan]

Thanks, changed it so the default one it points to is the local db

[ronovan]

tested locally and it works! merging