[1.8.x] Added 1.4.19 release notes.

Backport of 6f8418089c from master

docs/releases/1.4.19.txt

@@ -0,0 +1,16 @@
+===========================
+Django 1.4.19 release notes
+===========================
+
+*January 27, 2015*
+
+Django 1.4.19 fixes a regression in the 1.4.18 security release.
+
+Bugfixes
+========
+
+* ``GZipMiddleware`` now supports streaming responses. As part of the 1.4.18
+  security release, the ``django.views.static.serve()`` function was altered
+  to stream the files it serves. Unfortunately, the ``GZipMiddleware`` consumed
+  the stream prematurely and prevented files from being served properly
+  (`#24158 <http://code.djangoproject.com/ticket/24158>`_).

docs/releases/1.7.4.txt

@@ -2,7 +2,7 @@
 Django 1.7.4 release notes
 ==========================
 
-*Under development*
+*January 27, 2015*
 
 Django 1.7.4 fixes several bugs in 1.7.3.
 

docs/releases/index.txt

@@ -79,6 +79,7 @@ versions of the documentation contain the release notes for any later releases.
 .. toctree::
    :maxdepth: 1
 
+   1.4.19
    1.4.18
    1.4.17
    1.4.16