Removes retired sites ARN01, YUL01, YYC01 and YYZ01 from sites. py. (#162)
Removes retired sites ARN01, YUL01, YYC01 and YYZ01 from sites. py. (#162)


critzo/operator,m-lab/operator,stephen-soltesz/operator,stephen-soltesz/operator,m-lab/operator,critzo/operator