Updated expected date for 2.1.4 release.
Django 2.1.4 release notes
==========================
-*Expected December 1, 2018*
+*Expected December 3, 2018*
-Django 2.1.4 fixes several bugs in 2.1.3
+Django 2.1.4 fixes several bugs in 2.1.3.
Bugfixes
========
