start working on 5.4.0

Author: rbri

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>org.htmlunit</groupId>
     <artifactId>htmlunit</artifactId>
-    <version>5.3.0</version>
+    <version>5.4.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>HtmlUnit</name>