- oscc_has_objects needs to do a signed comparison, or osc_create will

- oscc_has_objects needs to do a signed comparison, or osc_create will
  spin forever
- print some lines to the log about which objects are being returned,
  and which were preallocated
- default to starting at 2 instead of 0, because that's the first
  object that the OST will actually create.  This will be replaced
  shortly with an actual understanding of which objects are available
  at startup
- exclude tests 34c-34e until I fix "create with existing size"; the
  rest of sanity passes if you start with a newly formatted OST (see
  last point)