update pt-pt translation (#724)
update pt-pt translation (#724)

"Quit" means "Sair" in portuguese.  "Encerrar" or "Desligar" is the same as "Shutdown"
poisdeux/Kore,SyncedSynapse/Kore,xbmc/Kore,xbmc/Kore,SyncedSynapse/Kore,poisdeux/Kore,poisdeux/Kore,xbmc/Kore,SyncedSynapse/Kore