Version-bump to start work on 1.5

CHANGELOG.txt

@@ -1,6 +1,10 @@
 Changelog
 =========
 
+1.5 (xx.xx.xxxx)
+~~~~~~~~~~~~~~~~
+
+
 1.4 (xx.xx.xxxx)
 ~~~~~~~~~~~~~~~~
 
@@ -56,6 +60,7 @@ Changelog
 
  * 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)
 ~~~~~~~~~~~~~~~~
 
@@ -100,6 +105,7 @@ Changelog
  * Fix: Rendering a missing image through ImageChooserBlock no longer breaks the whole page (Christian Peters)
  * Fix: Filtering by popular tag in the image chooser now works when using the database search backend
 
+
 1.2 (12.11.2015)
 ~~~~~~~~~~~~~~~~
 

docs/releases/1.5.rst

@@ -0,0 +1,15 @@
+==========================================
+Wagtail 1.5 release notes - IN DEVELOPMENT
+==========================================
+
+.. contents::
+    :local:
+    :depth: 1
+
+
+What's new
+==========
+
+
+Upgrade considerations
+======================

docs/releases/index.rst

@@ -4,6 +4,7 @@ Release notes
 .. toctree::
    :maxdepth: 1
 
+   1.5
    1.4
    1.3.1
    1.3

wagtail/project_template/requirements.txt

@@ -1,2 +1,2 @@
 Django>=1.9,<1.10
-wagtail==1.4rc1
+wagtail==1.5a0

wagtail/wagtailcore/__init__.py

@@ -1,6 +1,6 @@
-__version__ = '1.4rc1'
+__version__ = '1.5a0'
 # Required for npm package for frontend
-__semver__ = '1.4.0-rc.1'
+__semver__ = '1.5.0-alpha'
 default_app_config = 'wagtail.wagtailcore.apps.WagtailCoreAppConfig'