manage bcolz tests to support windows
manage bcolz tests to support windows

ContinuumIO/odo,ywang007/odo,cowlicks/odo,cpcloud/odo,blaze/odo,ywang007/odo,cowlicks/odo,alexmojaki/odo,alexmojaki/odo,blaze/odo,quantopian/odo,Dannnno/odo,Dannnno/odo,quantopian/odo,ContinuumIO/odo,cpcloud/odo