Update to new JavFX GUI creation. Swing and awt has deprecated use in Java 8. Many
modification will be necessary to get the old structure to work.
Fix updating of GUI. GUI must not be updated outside main thread. Platform.runLater will
send gui update to main thread which will at "some point" execute it.
Forgot to add the GUI fxml files.
Classic refactoring.
Clicking on request list will now give the opportunity to add the person to friendlist.
Clicking on request list will now give the opportunity to add the person to friendlist.