FE/Qt: language string updates.
FE/Qt: updated NLS from 4.1.
FE/Qt4-OSX: fix the translation of the application menu
FE/Qt4-NLS: updated qt_* translation files to 4.4.3
renamed VirtualBox4 to VirtualBox
purge the obsolete Qt3 GUI
FE/Qt3: Updated the Indonesian and Chinese (China) NLS.
FE/Qt: Aded Indonesian translation; Updated Catalan and French translations.