Updated expected date for 2.1.4 release.

docs/releases/2.1.4.txt

@@ -2,11 +2,11 @@
 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
 ========
 
-* ...
+* ...