Changed all status to start with Uppercase letters, made 3 properties required. Changed all the status to start with Uppercase letters because they are publicly visible. Also changed required=True to False for created_by, modified_by property to allow site admin to create and modify tasks. Also changed required=True to False for history to allow history not to be written until the task is published.

def create_spatial_db(test=True, verbosity=1, autoclobber=False):
    if not test: raise NotImplementedError('This uses `create_test_db` from test/utils.py')
    from django.db import connection
    connection.creation.create_test_db(verbosity, autoclobber)