*: fix legacy imports

This change reorganizes imports and renames the legacy flask extensions.

endpoints/api/__init__.py

@@ -1,19 +1,19 @@
 import logging
 import datetime
 import json
-from enum import Enum
 
-from app import app, metric_queue
-from flask import Blueprint, Response, request, make_response, jsonify, session, url_for
-from flask.ext.restful import Resource, abort, Api, reqparse
-from flask.ext.restful.utils.cors import crossdomain
 from calendar import timegm
 from email.utils import formatdate
 from functools import partial, wraps
+
+from enum import Enum
+from flask import Blueprint, Response, request, make_response, jsonify, session, url_for
+from flask_restful import Resource, abort, Api, reqparse
+from flask_restful.utils.cors import crossdomain
 from jsonschema import validate, ValidationError
 
+from app import app, metric_queue
 from data import model
-from util.names import parse_namespace_repository
 from auth.permissions import (ReadRepositoryPermission, ModifyRepositoryPermission,
                               AdministerRepositoryPermission, UserReadPermission,
                               UserAdminPermission)
@@ -21,9 +21,11 @@ from auth import scopes
 from auth.auth_context import get_authenticated_user, get_validated_oauth_token
 from auth.auth import process_oauth
 from endpoints.csrf import csrf_protect
-from endpoints.exception import ApiException, Unauthorized, InvalidRequest, InvalidResponse, FreshLoginRequired
+from endpoints.exception import (ApiException, Unauthorized, InvalidRequest, InvalidResponse,
+                                 FreshLoginRequired)
 from endpoints.decorators import check_anon_protection
 from util.metrics.metricqueue import time_decorator
+from util.names import parse_namespace_repository
 from util.pagination import encrypt_page_token, decrypt_page_token
 
 logger = logging.getLogger(__name__)