Just thinking about the troubles LateralGM had maintaining translations. There's a startup project that basically works like git for translations where authors can create translations for a project.
As an example this is the one for the ControlsFX project:
https://www.transifex.com/controlsfx/controlsfx/
This could be a good idea for the future as it can attract more professional translation services and there are paid versions too.
https://www.transifex.com/product/
