init: user management
renamed for moar pep8
added a db_actions file
implemented list_users()
user list output is now pretty
users can now be deleted
users can now be added
generates new database if none exists
removed add_user.py

all functionality is now in user.py
pep8ified everything
users may now be modified
Merge branch 'feature/user-administration' into develop

Conflicts:
	client/add_user.py