Fix get_machine_status returns a byte unit: #133
Fix get_machine_status returns a byte unit: #133

kumagi/jubatus_core,rimms/jubatus_core,rimms/jubatus,rimms/jubatus,kumagi/jubatus_core,gintenlabo/jubatus_core,roselleebarle04/jubatus,kumagi/jubatus_core,kmaehashi/jubatus_core,rimms/jubatus_core,kmaehashi/jubatus_core,rimms/jubatus_core,gintenlabo/jubatus_core,rimms/jubatus_core,Asuka52/jubatus,gintenlabo/jubatus,jubatus/jubatus,elkingtonmcb/jubatus,gintenlabo/jubatus_core,elkingtonmcb/jubatus,kmaehashi/jubatus_core,kmaehashi/jubatus_core,gintenlabo/jubatus,Asuka52/jubatus,gintenlabo/jubatus_core,mathn/jubatus,kmaehashi/jubatus,roselleebarle04/jubatus,mathn/jubatus,kmaehashi/jubatus,jubatus/jubatus,kumagi/jubatus_core,jubatus/jubatus