Fix indentation
Do not use method overloading on methods called from JavaScript

JavaScript has no method overloading, so it can't tell whether we're
calling JSinfo(String) or JSinfo(String, String, String).

In Java 8 (preview version), we're hit by bug
https://javafx-jira.kenai.com/browse/RT-33686 which causes a
segmentation fault in this case.

After this commit, Dahu starts being usable on Java 8.