replaced django.utils.importlib with importlib due to deprecation in …

…Django 1.9

jstemplate/loading.py

@@ -1,8 +1,8 @@
 from __future__ import unicode_literals
 
 import six
+from importlib import import_module
 from django.core.exceptions import ImproperlyConfigured
-from django.utils.importlib import import_module
 
 from .conf import conf