Updated calculation defaults
Added get_env_var for better security
Migrated get_env_var to local_settings
Added company contact url & view & template
Added emailing to loan companies
Added loan calculation data to company message
Added analysis (filter/search) for loan messages and calculations.
Added test email address
duplicated loan_amount in loan info for clarity.
Companies only offer loans for which addition tables have been supplied
Changed test email being in to field to having email bcc to test email