Added stub release notes for security releases.

docs/releases/1.4.20.txt

@@ -0,0 +1,7 @@
+===========================
+Django 1.4.20 release notes
+===========================
+
+*March 18, 2015*
+
+Django 1.4.20 fixes one security issue in 1.4.19.

docs/releases/1.6.11.txt

@@ -0,0 +1,7 @@
+===========================
+Django 1.6.11 release notes
+===========================
+
+*March 18, 2015*
+
+Django 1.6.11 fixes two security issues in 1.6.10.

docs/releases/1.7.7.txt

@@ -4,7 +4,7 @@ Django 1.7.7 release notes
 
 *Under development*
 
-Django 1.7.7 fixes several bugs in 1.7.6.
+Django 1.7.7 fixes several bugs and security issues in 1.7.6.
 
 Bugfixes
 ========

docs/releases/index.txt

@@ -53,6 +53,7 @@ versions of the documentation contain the release notes for any later releases.
 .. toctree::
    :maxdepth: 1
 
+   1.6.11
    1.6.10
    1.6.9
    1.6.8
@@ -89,6 +90,7 @@ versions of the documentation contain the release notes for any later releases.
 .. toctree::
    :maxdepth: 1
 
+   1.4.20
    1.4.19
    1.4.18
    1.4.17