Bump to 1.4.0-SNAPSHOT.

Author: nedtwigg

README.md

@@ -21,7 +21,7 @@ output = [
 [![Javadoc](https://img.shields.io/badge/javadoc-OK-blue.svg)](https://diffplug.github.io/freshmark/javadoc/1.3.1/)
 [![License Apache](https://img.shields.io/badge/license-Apache-blue.svg)](https://tldrlegal.com/license/apache-license-2.0-(apache-2.0))
 
-[![Changelog](https://img.shields.io/badge/changelog-1.3.1-brightgreen.svg)](CHANGES.md)
+[![Changelog](https://img.shields.io/badge/changelog-1.4.0--SNAPSHOT-brightgreen.svg)](CHANGES.md)
 [![Travis CI](https://travis-ci.org/diffplug/freshmark.svg?branch=master)](https://travis-ci.org/diffplug/freshmark)
 [![Live chat](https://img.shields.io/badge/gitter-chat-brightgreen.svg)](https://gitter.im/diffplug/freshmark)
 

gradle.properties

@@ -1,5 +1,5 @@
 stable=1.3.1
-version=1.3.1
+version=1.4.0-SNAPSHOT
 name=freshmark
 group=com.diffplug.freshmark
 description=FreshMark - Keep your markdown fresh