[PORT] fix imports

mailgun/controllers/main.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from openerp.addons.web import http
-from openerp.addons.web.http import request
+from odoo import http
+from odoo.http import request
 import werkzeug
 import email
 import requests

mailgun/models.py

@@ -1,14 +1,8 @@
 import requests
-import time
-import dateutil
-import pytz
 import simplejson
 
 from openerp import models, api
 
-from openerp.addons.mail.models.mail_message import decode
-from openerp.addons.mail.models.mail_thread import mail_header_msgid_re
-
 import logging
 _logger = logging.getLogger(__name__)