Merge pull request #190 from aaujon/master

Fix #170 : use default 'hidden' email address when Jira server settin…

jira/client.py

@@ -785,7 +785,7 @@ def group_members(self, group):
 
         result = {}
         for user in r['users']['items']:
-            result[user['name']] = {'fullname': user['displayName'], 'email': user['emailAddress'],
+            result[user['name']] = {'fullname': user['displayName'], 'email': user.get('emailAddress', 'hidden') ,
                                     'active': user['active']}
         return result