Changes included (2 changes).

Change 9d2caa28f7eb3aa7146011dd50ce7f995e4d6e04 by andrew hanushevsky <[log in to unmask]> (1 file): Update notes for redirect monitoring change.

Change ac99f40ec20706d44d888116b8e6dc6ab8740133 by andrew hanushevsky <[log in to unmask]> (26 files): Implement ultralow overhead redirect monitoring. Note that ofs plugin writers will need to recompile their plugin interface to be fully compatible with this commit due to additional information passed to the ofs object "new" methods.