This TI information, between the words 0xd0000000 and 0xd000000f,
  contains the # of pedestals, the time interval between scaler events
  the event interval between synchronized scaler events and the
  prescale settings.  Two versions of this block of data are supported,
  version one is mssing the scaler interval values.

  Nothing is actually done with the information found in event 125, but
  a summary can be printed with the method THcConfigEvtHandler::PrintConfig()

  1.  If there are multiple ROCs with scalers (hardware, TI, FADC), then
there will be multiple event 129s.  In the case where analysis of these
events is defered to the end of the analysis, all the event 129s will
be analyzed as if a single event, resulting in one entry in the tree.
  2.  Scalers are read either when a given time interval has passed since
the last scaler read (usually 2 seconds), or every time an event is tagged
as a sync event.  In the case of the "timed" reading of events, different ROCs
with scalers are not guaranteed to read their scalers at the same event.  But
or sync event scaler reads, all ROCs read their scalers.  This commit adds an
option SetOnlyUseSyncEvents(Bool_t).  If set, only scaler events triggered
by the sync event will be analyzed.

Fix bug if more BCMs defined in db_PScalevt.dat than in gscalers.param

Fix bug that confused names "BCM1" and "BCM17" by adding ".scal" to the BCM name

1) Add X,Y offsets parameter for each plane, instead of X,Y offset per chamber
2) ModifyTHcDriftChamber::CorrectHitTimes to work with SHMS chambers
3) Add GetReadoutSide method to THcDCHit class.

  Cache the Cherenkov detector and parent pointers in Init

  Fixes building when using scons 3.0 which apparenlyt uses python3.
  Fixes broken building on travis

  For both the layers and the array part
  Correct calculation of coordinates of the Array modules in the
    calorimeter effciency calculations.

Previous was trying to return the reconstructed target
quantities as values which was totaly wrong.

Changed so that the references are returned. Now get the
reconstructed target quantities properly.

  fpTimes, fScinTime, fScinSigma and fScinZpos are not used.
  These arrays were given fixed size of 53.
  This commit finishes issue #53

  Add #include <set>
  Don't use new method of looping over vector

  When the db file is read, a list of crate #s and a list of
  module types is made.  The tag of each bank searched for scalers
  must have a tag that is in one of these lists.
  If all scalers are in banks tagged with the module type, then,
  SetOnlyBanks(kTRUE) should be called in which case bank tags will
  be compared only against this list of module types.

  In the end method of the Hall C rocs, the scalers are read for a final
  time and a user event 129 is created with the scaler counts.
  These events do not always appear at the end of the coda file, leading to
  the risk that triggered scaler reads will appear after the event 129s.

  If the event type of these final scaler reads is passed to the scaler
  object with the SetDelayedType(int evtype) method, then the scaler analyis
  will cache these events and analyze them at the end of the analysis.

This method calculates the target quantities using the focal
plane quantities and the optics matrix. Previously
this was done in THcHallCSpectrometer::FindVertices.
Now in THcHallCSpectrometer::FindVertices there is
a call to CalculateTargetQuantities


This method will be called by THcExtTarCor
to do the xtar correction.

Fixed minor bug
   FindStub was using the uncorrected drift distance
   from the hit object that was not corrected in
   CorrectHitTimes method. Need to use the corrected
   drift distance that with the spacepoint Hit structure

Change per event initialization of Good TDC quantities
from zero to kBig.

  Use pointer to event from evdata->GetRawDataBuffer() instead
  of making a local copy of the event before scanning it for
  scaler data

  There was already an AddEvtType in the base class.
  Should use SetEvtType to set the event type.  If the handler is to
  look for more than one event type, use AddEvtType for the extra
  event types.

**This class calculates kinematic variables related to the secondary (hadron)
detected particle

When making changes to support THcPrimaryKine added line
track->SetEnergy
which set the track energy to energy determined from
measurement of spectrometer delta.
But this energy should be the energy measured by the
Shower calorimeter.
Deleted the line in THcHallCSpectrometer since it is not
needed anyway.

Add class THcPrimaryKine to calculate physics kinematics quantities for single arm

Modified  THcHallCSpectrometer so that it would fill track energy and momentum 3 vector

   Gets rid of vars.push_back(RVarDef ... stuff

Also do some whitespace cleanup

  This is so that hodoscope paddles in Eve are illuminated