Revert "Remove obsolete StationsFetcher code"

This reverts commit b8b65f183a98a346e4627740690c11676d59a990.
Revert "Fix broken hzinfo service"

This reverts commit b4dde1f527c48d0ceb03f2956c7256526915697e.
Revert "Fix broken hzinfo service"

This reverts commit bc55686c93ebb289bbbfc0e2aa687b42f8fd930e.