Merge pull request #231 from skaldarnar/javafx

Javafx
Merge pull request #232 from msteiger/javafx

Update gradle build file for webstart
Merge pull request #233 from msteiger/javafx

Added jnlp codebase
Add the application plugin back in
Create custom createRelease task

* The original one also packs JavaFX runtime (18megs)
* The startScripts task does not add the JavaFX runtime file, so it does
  not work anymore