Version bump to 1.3.1

Conflicts:
	CHANGELOG.txt
	docs/releases/index.rst
	wagtail/project_template/requirements.txt
	wagtail/wagtailcore/__init__.py

CHANGELOG.txt

@@ -8,6 +8,11 @@ Changelog
  * Fix: Custom page managers no longer raise an error when used on an abstract model
  * Fix: Wagtail's migrations are now all reversible (benjaoming)
 
+1.3.1 (05.01.2016)
+~~~~~~~~~~~~~~~~~~
+
+ * Fix: Applied workaround for failing wagtailimages migration on Django 1.8.8 / 1.9.1 with Postgres (see <https://code.djangoproject.com/ticket/26034>)
+
 1.3 (23.12.2015)
 ~~~~~~~~~~~~~~~~
 

docs/releases/1.3.1.rst

@@ -0,0 +1,15 @@
+===========================
+Wagtail 1.3.1 release notes
+===========================
+
+.. contents::
+    :local:
+    :depth: 1
+
+What's changed
+==============
+
+Bug fixes
+~~~~~~~~~
+
+* Applied workaround for failing ``wagtailimages`` migration on Django 1.8.8 / 1.9.1 with Postgres (see `Django issue #26034 <https://code.djangoproject.com/ticket/26034>`_)

docs/releases/index.rst

@@ -5,6 +5,7 @@ Release notes
    :maxdepth: 1
 
    1.4
+   1.3.1
    1.3
    1.2
    1.1