Add Portal for Java 0.4

Project
* https://github.com/flowersinthesand/portal-java

Files
* portal-extension.js - https://raw.github.com/flowersinthesand/portal-java/portal-parent-0.4/javascript/src/main/resources/META-INF/resources/javascripts/portal-extension.js
* portal-extension.min.js - https://raw.github.com/flowersinthesand/portal-java/portal-parent-0.4/javascript/src/main/resources/META-INF/resources/javascripts/portal-extension.min.js

Thanks,