Update deprecated imports

backend/backend_blueprint.py

@@ -1,8 +1,8 @@
 import base64
 
 from flask import Blueprint, session, g, current_app
-from flask.ext import restful
-from flask.ext import login
+import flask_restful as restful
+import flask_login as login
 from itsdangerous import JSONWebSignatureSerializer, BadSignature
 from pool import Pool
 from models import Model, ModelBunch, ModelMethod, Token

backend/models.py

@@ -1,10 +1,10 @@
 from ast import literal_eval
 from six.moves.xmlrpc_client import Fault
 from flask import jsonify, current_app, g, request
-from flask.ext import restful
-from flask.ext.restful import reqparse
-from flask.ext import login
-from flask.ext import cors
+import flask_restful as restful
+from flask_restful import reqparse
+import flask_login as login
+import flask_cors as cors
 from itsdangerous import JSONWebSignatureSerializer
 
 from utils import (