auto-commit: translation updates
gray out jettison button if not flying
Xylophis update by Nyankosensei
auto-commit: translation updates
Merge remote-tracking branch 'nozmajner/xylophis_update'
Merge remote-tracking branch 'impaktor/disable_jettison_button'
Merge pull request #41 from pioneerspacesim/master

Sync to master