Refactor zone and range bootstrapping code
Refactor zone and range bootstrapping code

drkitty/cyder,zeeman/cyder,OSU-Net/cyder,zeeman/cyder,OSU-Net/cyder,drkitty/cyder,akeym/cyder,zeeman/cyder,murrown/cyder,murrown/cyder,drkitty/cyder,akeym/cyder,murrown/cyder,murrown/cyder,zeeman/cyder,akeym/cyder,akeym/cyder,OSU-Net/cyder,drkitty/cyder,OSU-Net/cyder