replace json.loads(resp.content) by simpler resp.json() (#8240)

passerelle_montpellier_sig/models.py

@@ -1,7 +1,6 @@
 import urlparse
 import requests
 import logging
-import json
 
 from django.core.urlresolvers import reverse
 from django.db import models
@@ -50,7 +49,7 @@ class MontpellierSig(BaseResource):
                            resp.status_code, resp.content)
             return []
         try:
-            return json.loads(resp.content)
+            return resp.json()
         except Exception, e:
             logger.warning('error occured while trying to read json data from %r: %r', endpoint, e)
             return []