catch an exception in KeyboardDescriptors so it doesn't complain if no ibus
catch an exception in KeyboardDescriptors so it doesn't complain if no ibus

JohnThomson/libpalaso,glasseyes/libpalaso,gtryus/libpalaso,hatton/libpalaso,chrisvire/libpalaso,tombogle/libpalaso,andrew-polk/libpalaso,mccarthyrb/libpalaso,JohnThomson/libpalaso,ddaspit/libpalaso,gtryus/libpalaso,marksvc/libpalaso,hatton/libpalaso,hatton/libpalaso,JohnThomson/libpalaso,sillsdev/libpalaso,ermshiperete/libpalaso,andrew-polk/libpalaso,gmartin7/libpalaso,mccarthyrb/libpalaso,marksvc/libpalaso,ermshiperete/libpalaso,tombogle/libpalaso,ermshiperete/libpalaso,gmartin7/libpalaso,ddaspit/libpalaso,ermshiperete/libpalaso,gmartin7/libpalaso,mccarthyrb/libpalaso,glasseyes/libpalaso,ddaspit/libpalaso,gtryus/libpalaso,chrisvire/libpalaso,JohnThomson/libpalaso,tombogle/libpalaso,gtryus/libpalaso,ddaspit/libpalaso,tombogle/libpalaso,gmartin7/libpalaso,andrew-polk/libpalaso,marksvc/libpalaso,andrew-polk/libpalaso,chrisvire/libpalaso,glasseyes/libpalaso,darcywong00/libpalaso,darcywong00/libpalaso,darcywong00/libpalaso,chrisvire/libpalaso,mccarthyrb/libpalaso,sillsdev/libpalaso,hatton/libpalaso,glasseyes/libpalaso,sillsdev/libpalaso,sillsdev/libpalaso