Adjust .mailmap.
Load FXML immediately when on FX Application Thread

This is a port of the fix that has been made to fx-guice
by 'Thijs Walcarius'.

See https://github.com/cathive/fx-guice/commit/12224c02060dfa1a79f89b4aad8a8d1843d6b512 (original commit for fx-guice)