DQ flag updates since last report on March 7, 2008

* Inserted updated and revised H1 and H2 flags for periods when
  the other IFO was acquiring or losing lock.
  SEISMIC_X_30_100_mHz_LOWTHRESH 
  H1_LOCKLOSS H1_LOCKGAIN H2_LOCKLOSS H2_LOCKGAIN
  (Lindy Blackburn)

* Inserted new H2 flags for epochs of degraded or non-stationary
  inspiral range, arising from a variety of artifact.
  EARTHQUAKE_GLITCHINESS SICK BADMONTH ASC_TROUBLE
  TCS_TROUBLE ISCT10_TROUBLE MMT3_GLITCHINESS SENSEMON_RANGE_STEP
  ROUTE10_TRAFFIC BALING_ACTIVITY STACK_RESONANCE
  (Gaby Gonzales)

* Inserted refined flags for periods when the L1 RBZ PZE
  was railed.
  RAILED_RBS_PZT
  (Shantanu Desai)

* Inserted new flag for a period when the L1 MMT3 yaw servo
  was saturated.
  MMT3_YAW_SATURATION
  (Shantanu Desai)

* Inserted new H1 & H2 flags for a variety of epochs marked by 
  operators as having some kind of potentially science-degrading
  "activity".
  HUMAN_ACTIVITY LAB_ACTIVITY MACHINE_ACTIVITY 
  OTHER_ACTIVITY VEHICULAR_ACTIVITY
  (Keith Riles)