update dependencies

app/__init__.py

@@ -5,7 +5,7 @@ import uuid
 
 from flask import Flask, _request_ctx_stack
 from flask import request, g, jsonify
-from flask.ext.sqlalchemy import SQLAlchemy
+from flask_sqlalchemy import SQLAlchemy
 from flask_marshmallow import Marshmallow
 from monotonic import monotonic
 from notifications_utils.clients.statsd.statsd_client import StatsdClient

app/commands.py

@@ -1,7 +1,7 @@
 import uuid
 from datetime import datetime
 from decimal import Decimal
-from flask.ext.script import Command, Manager, Option
+from flask_script import Command, Manager, Option
 
 from app import db
 from app.dao.monthly_billing_dao import (

app/encryption.py

@@ -1,4 +1,4 @@
-from flask.ext.bcrypt import generate_password_hash, check_password_hash
+from flask_bcrypt import generate_password_hash, check_password_hash
 
 from itsdangerous import URLSafeSerializer