Set isdst member varialbe: fix #773
Set isdst member varialbe: fix #773

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