added a basic db.seed
Eliminated update calls in other methods (and added them to appropriate tests) in preparation for the update_all methods
Migrated status_manp from an integer type to a decimal type in the database, and verified tests pass
Updated methods and completed testing for all formulas except update_status_ms in project, which will be redone after a migration
migrated status_ms field in project to be a hash of process-progress values, and performed appropriate validations and testing
Finished coding and testing all formulas, as well as corresponding schema changes