changes first included in the 2001 July 25 version
==================================================

- fully implemented SEM static mode
  calibration parameters matching SEM calibration mode added to
  gen_scalers.cmn and gen01.database:
      real*8 gsem_xcal_lo     !SEM calibration frequency at x= -15mm
      real*8 gsem_xcal_hi     !SEM calibration frequency at x= +15mm
      real*8 gsem_ycal_lo     !SEM calibration frequency at y= -15mm
      real*8 gsem_ycal_hi     !SEM calibration frequency at y= +15mm
      real*8 gsem_dxcal_lo    !SEM calibration frequency at x dia = 0
      real*8 gsem_dxcal_hi    !SEM calibration frequency at x dia = 30mm
      real*8 gsem_dycal_lo    !SEM calibration frequency at y dia = 0
      real*8 gsem_dycal_hi    !SEM calibration frequency at y dia = 30mm
  added helicity--either clock to gscalers.param.01Jul13 
      integer*4 gclockh_index
  added calculation of SEM centroid and diameter for static mode
  to n_fill_tbpm.f
  
- updated PAW macro  ndet.kumac  in kumac/gen/

- added PAW macro  paddle.kumac  and code fill_paddle_hists.f
  to kumac/gen/
  
- updated code to reflect actual ADC channel used for slow raster ADC
    g_analyze_misc.f
    
- added software scalers for occurence of helicity and event scalers,
  as well as their respective error banks
    g_analyze_scaler_bank.f
    g_scaler_reset_event.f
    gen_scalers.cmn
    nreport_part1.template
  
- fixed decoding of TBPM ADCs (event mode SEM) to allow for
  sparsification
    n_analyze_pedestal_tbpm.f
    n_clear_event.f
    n_data_structures.cmn
    n_fill_tbpm.f
    
- added SEM histograms to code and CTP histogram definitions
    n_fill_tbpm.f
    n_id_histid.cmn
    n_init_histid.f
    hist.NDET_SEM
    
- added additional TBPM (SEM) variables to HMS ntuple

- added raster current ADC values to nDet Ntuple

- changed SEM entry in nDet Ntuple to give static
  mode values if analyzed in static mode (hms_recon_type=4)

- added event time stamp to nDet Ntuple (fast clock scaler)
  and also both BCM values, all from event scaler!

- added updated MAP gen01.map.01Jul22

- updated kinematics  gen01.kinematics

- updated
    hdriftmap.param_40109.01
    hhodo.param_40109.02
    hconstants.param.01
    hdc.pos.02
    hdc.param_40109.01
    gconstants.param.02

- updated scalers, BCM calibration

- added 'clean' and 'all_clean' options to Makefile

- added new database report
     REPLAY.PARM
     Templates/n_db.template
     SRC/n_proper_shutdown.f
     SRC/g_initialize.f
     SRC/ndet_filenames.cmn
     SRC/g_init_filenames.f

- removed unused parameter  npathlength_central

- added nDet geometry offsets
    ndet_all_offset_x
    ndet_all_offset_y
    ndet_all_offset_z
  in files 
    n_init_scin.f
    ndet_scin_parms.cmn

- updated nDet geometry values

- moved various nDet tracking parameter from code to
  parameter file
     ndet_tracking.f
     ndet_scin_parms.cmn
     ndet.param

- changed g_helicityscaler variable to real*8

- changed names of event scalers from evscal... to g_evscal...

- added roll-over correction to helicity and event scalers

- changed   ndet_tdc_min to +1.  in  ndet.param

- changed some defaults in  REPLAY.PARM  to apply to checkout

- add code to apply offsets to HMS central momentum and angle
     h_apply_offsets.f  (new)
     g_apply_offsets.f  (new)
     hms_physics_sing.cmn
     engine.f
     Makefile.Unix
     
- added switch to bypass nDet tracking codes for faster analysis
     ndet_bypass_switches.cmn  (new)
     n_reconstruction.f
     n_register_param.f
     Makefile.Unix
     
- changed logic to allow FB event to decode event scaler (ROC 9)
     
- updated script  charge_replay  to use bypass switches          
     
- added directory  gainmatching  containing Daniela's tools
  and documentation
  
- moved SEM static mode calibration frequencies from 
  DBASE/gen.database  to  PARAM/gbeam.param