Missing super() in API collection controllers

The __init__ of these 3 classes are missing the super() call

watcher/watcher/api/controllers/v1/goal.py:113
watcher/api/controllers/v1/audit.py:217
watcher/watcher/api/controllers/v1/audit_template.py:166

Change-Id: I2fec1d5dac29a311f617ef141d5bf91f00b96219
Closes-Bug: #1535354

watcher/api/controllers/v1/audit.py

@@ -215,6 +215,7 @@ class AuditCollection(collection.Collection):
     """A list containing audits objects"""
 
     def __init__(self, **kwargs):
+        super(AuditCollection, self).__init__()
         self._type = 'audits'
 
     @staticmethod