Moved Launcher to cabin package
Removed UUID in server logs
Switched to log4j to log spark and jetty activity
Added new OPEN_UP and OPEN_DOWN commands
Added new Cabin interface to store each cabin state
Added default multi cabin elevator implementation
Added new MultiCabinOmnibusElevator
Keeping separated out request counts in FloorRequest
Added new MultiCabinUpAndDownElevator
Added new MultiCabinYoungAndRestlessElevator