Update HISTORY.rst

Author: TheBuky

HISTORY.rst

@@ -3,6 +3,16 @@
 History
 =======
 
+1.7.0
+=====
+
+Release the last major version of django-pipeline working on Python 2.
+* Thank you for all the modifications made since version 1.6.14, which we cannot quote.
+* Apply an optimization to save time during development. Thank to @blankser
+* Edit setup.py to follow the recommendation of the documentation. Thank to @shaneikennedy
+* Add tests for Django 3.0 and Python 3.8
+* Add alternatives imports for django.utils.six, who has been removed in Django 3.0
+
 1.6.14
 ======