Timeline module JA localization

This is a bit of a large pull request. It is the complete localization of the timeline module UI elements. I was able to localize everything in the UI except 1 string that would have required too much code restructuring.

That one string is on line 10 of timeline/ui/NoEventsDialog.fxml. The text="" field should be extracted into the java source like the rest. However, since the NoEventsDialog instantiation on line 400 of timeline/ui/VisualizationPanel.java does not save the instantiation to a variable, it is not currently possible to call the setText() method on that object. The code needs to be changed to something similar to this:

ned = new NoEventsDialog();
ned.setText("No Visible Events");

Then the text="No Visible Events" can be removed from the .fxml file. And the string in the setText box can be extracted into the timeline/ui/Bundle.properties like the rest.