add gunicorn to requirements
add gunicorn to requirements

Urumasi/Flask-Bones,Urumasi/Flask-Bones,Urumasi/Flask-Bones,cburmeister/flask-bones,kua-hosi-GRUp/Flask-Bones,kua-hosi-GRUp/Flask-Bones,cburmeister/flask-bones,kua-hosi-GRUp/Flask-Bones,cburmeister/flask-bones