hsx group repos are open - perm removal integration is complete

[John Coomes]

The perm removal changes have been pushed up to hotspot-main and
pulled down into all the hotspot-{group} repos, so the group repos are
now open for normal work.  Thanks for your help and patience.

Please avoid pushing to hsx/hotspot-main for a few more days while we
run PIT, in case there are some fixes required to allow integration
into jdk8.

-John