Updated mesos-tidy setup to be based on upstream 6.0 release.
Updated mesos-tidy setup to be based on upstream 6.0 release.

Review: https://reviews.apache.org/r/66035/

kaysoky/mesos,chhsia0/mesos,abudnik/mesos,gsantovena/mesos,Gilbert88/mesos,jpeach/mesos,reneploetz/mesos,Gilbert88/mesos,chhsia0/mesos,abudnik/mesos,dforsyth/mesos,jpeach/mesos,jpeach/mesos,abudnik/mesos,andschwa/mesos,kaysoky/mesos,kaysoky/mesos,jpeach/mesos,dforsyth/mesos,kaysoky/mesos,chhsia0/mesos,kaysoky/mesos,gsantovena/mesos,chhsia0/mesos,chhsia0/mesos,reneploetz/mesos,andschwa/mesos,abudnik/mesos,dforsyth/mesos,Gilbert88/mesos,Gilbert88/mesos,reneploetz/mesos,andschwa/mesos,Gilbert88/mesos,andschwa/mesos,dforsyth/mesos,Gilbert88/mesos,jpeach/mesos,gsantovena/mesos,dforsyth/mesos,gsantovena/mesos,andschwa/mesos,reneploetz/mesos,kaysoky/mesos,andschwa/mesos,abudnik/mesos,kaysoky/mesos,jpeach/mesos,dforsyth/mesos,gsantovena/mesos,Gilbert88/mesos,reneploetz/mesos,abudnik/mesos,gsantovena/mesos,chhsia0/mesos,andschwa/mesos,jpeach/mesos,reneploetz/mesos,chhsia0/mesos,dforsyth/mesos,reneploetz/mesos,gsantovena/mesos,abudnik/mesos