Revert "update "thread" module to "threading" for Py3"
Revert "update "thread" module to "threading" for Py3"

This reverts commit 14a25f8a88101fd3d6049a35989d7af6d59d4bbd.

saradbowman/osf.io,cslzchen/osf.io,brianjgeiger/osf.io,CenterForOpenScience/osf.io,baylee-d/osf.io,mfraezz/osf.io,CenterForOpenScience/osf.io,Johnetordoff/osf.io,aaxelb/osf.io,felliott/osf.io,CenterForOpenScience/osf.io,adlius/osf.io,cslzchen/osf.io,mattclark/osf.io,baylee-d/osf.io,Johnetordoff/osf.io,saradbowman/osf.io,mfraezz/osf.io,mattclark/osf.io,pattisdr/osf.io,mfraezz/osf.io,aaxelb/osf.io,mattclark/osf.io,baylee-d/osf.io,adlius/osf.io,felliott/osf.io,aaxelb/osf.io,cslzchen/osf.io,cslzchen/osf.io,adlius/osf.io,pattisdr/osf.io,brianjgeiger/osf.io,adlius/osf.io,aaxelb/osf.io,felliott/osf.io,pattisdr/osf.io,mfraezz/osf.io,brianjgeiger/osf.io,felliott/osf.io,Johnetordoff/osf.io,Johnetordoff/osf.io,brianjgeiger/osf.io,CenterForOpenScience/osf.io