sql/examples/ha_archive.cc:
  Added support for delayed inserts. What delayed inserts mean for archive is that a sync call is not forced with the next select. Instant performance gain, plus if you aren't concerned about having a consistant read you won't be forced to have less then optimized compression.
sql/examples/ha_archive.h:
  Added flags for dalyed inserts and added table flag so that the server knows that archive can support them.