Call mdev_poll() more often in testsignals to speed up batch requests. This will no longer be necessary once select branch is merged.
Python db: Added missing iterator for link_by_src_dest_names.
Merge branch 'master' into admin-bundles
Revert "Python db: Added missing iterator for link_by_src_dest_names."

This reverts commit cda2d7b73cd890985ce872fffe4fb0ba68a205b9.
Merge branch 'master' into admin-bundles