useful comment.
Revert "disable the nonrel folder purge task, it conflicts with the one from reldb."

This reverts commit 13651e5d6437bbae079d215520f4ab2b27d584f9.
version bump for 0.81.2.
Merge branch 'release/0.81.2' into develop
make tagname bigger to avoid http://dev.1flow.net/1flow/1flow/group/45487/
refresh is a little like swarm, network-wise. Give it more process room.
Just in case, be sure to not crash on http://dev.1flow.net/1flow/1flow/group/45487/ if previous commit isn't sufficient.
flake8.
version bump for 0.81.3.
Merge branch 'release/0.81.3' into develop
Merge branch 'develop' into feature/interface-reldb
Revert "Revert "disable the nonrel folder purge task, it conflicts with the one from reldb.""

This reverts commit b900b527ea6419aa3af3e449a76c347aa556c677.