upgrade debug toolbar for elastic

Author: barseghyanartur

examples/requirements/django_1_11.txt

@@ -4,7 +4,7 @@
 Django>=1.11,<2.0
 django-debug-toolbar==1.5
 django-debug-toolbar-force==0.1.3
-django-elasticsearch-debug-toolbar==1.0.4
+django-elasticsearch-debug-toolbar==1.2.0
 django-ormex==0.2
 djangorestframework==3.7.7
 drf-extensions==0.3.1