DQ flag updates since last report on April 18, 2008

* Inserted new H1 and H2 flags for a period of concrete
  work and particular seconds of sledgehammer blows at Hanford.
  CONCRETE_WORK SLEDGEHAMMER
  (Gaby Gonzalez)

* Inserted new H1 and H2 flags for a variety of problems noted
  in the elog by operators and scientists.
  COMMISSIONING_ELOG EARTHQUAKE_ELOG NONSTAND_CONFIG_ELOG 
  NONSTAND_TCS_ELOG PROCESSOR_TROUBLE_ELOG RFID_READER_ON_ELOG 
  TIMING_ERROR_ELOG
  (Shantanu Desai)