Prep Release 2.0.15 (#1571)

* Readd import Collections to show JSON validation failures details

* Editorial update

* Audiograbber - Remove config for not implemented feature

* Smoothing - Update defaults and range

* Version 2.0.15

test/jsonchecks/jsonschema.py

@@ -14,6 +14,7 @@ from __future__ import division, unicode_literals
 import contextlib
 import datetime
 import itertools
+import collections
 import json
 import numbers
 import operator