added multiplicity variable to THcShowerPlane.cxx/.h, and fixed multiplicity defined in THcCherenkov.cxx (#372)

Modified Hodoscope and ScintillatorPlane  classes for new time calibration method.

  If Load is called with a run number, but the first non blank/comment
  line encountered is not a run number or range, print a warning message.

1) Created Coincidence Time Physics Module
2) Created method to get coin. trig times in the THcTrigDet.cxx class

In Setup : Set name of histogram to include initial of spectrometer
   that it belongs. Each event in EstimateFocalPLaneTime the histogram
   is fill with the scintillator times so that a cut can be placed
   to throw out bad scintillator times relative to the mean of
   all scintillator times.

Change fBCM_Name to vector of strings .
Fixed memory leak when it was array of char.

Elminiate "void" in THcHodoscope::EstimateFocalPlaneTime( void )

In Process add if statement to be sure that hitcounter is
  greater than zero and less than total number of paddles
  in the plane.

THcSpacePoint
  1) added fSetStubFlag which is intialized
     to kFALSE in constructor and set to kTRUE
     when SetStub is called.
   2) added method GetSetStubFlag which
      returns fSetStubFlag.

THcDriftchamber
   1) In ProcessHits increased fHits reserve to 40
   2) In FindSpacePoints use fSpacePoints->Delete();
   3) In LeftRight ,only SetStub if the Stub is fit.

THcDC
   1) In LinkStubs
      a) only link stubs if number of total spacepoints <10
      b) only link stubs if both spacepoints have SetStubFlag true

THcDCHit.h
   1) In constructor initalize fLR to 0

THcDCTrack.cxx
   1) AddSpacePoint check if fnSP < 10

  Will correct sync problems in d(e,e'p) run coin_all_3302.dat and SIDIS
  run coin_all_3621.dat.

To correct 3621, run slipstudy.C as is.  To correct 3302, change kTRUE
to kFALSE in the line:

synccheck->SetResync(kTRUE);

  THcTimeSyncEvtHandler is a toolbox to study and correct various
  synchronization issues.
  It checks that the timestamp in the FADC250s agrees with the timestamp
  in the TI modules.
  It also checks if the event counter in the 1190 modules agrees with the
  event counter in the TI modules.
  It can be used to correct the 1190 synchronization problem we have
  seen in ROC3 by writing out a corrected data file.  See the next commit
  for an example of how it is used.

1) Have time cut on TrigDet reference time for TDC and ADC,
       to select reference time from multiple hits

2) Have time window to select best TDC or ADC reference time subtracted
   time  hit for each channel.

In LeftRight method when using SmallAngle Approximation and
 additional condition that the wires in adjacent plane have to
 be within 0.51cm.

Add call ConvertTimeToDist in SubtractStartTime method

Modify so default starttime is -1000.

Modify so if no hits in scintillator then EstimateFocalPlane is not called.

Fix type in GetSp2_ID()

THcDriftChamberPlane

  1) Remove subtraction of hodoscope starttime from ProcessHits
    which is called by THcDC::Decode.
  The hodoscope start time is determined in hodoscope Decode
   which is called after THcDC::Decode. So drift chamber
   was using the starttime from the previous event.

   2) Create method SubtractStartTime which is called by THcDC:CoarseTrack

THcDriftChamber
    1) Move fChambers[ic]->ProcessHits() to CoarseTrack
    2) Before looping through fChambers[ic]->ProcessHits() in CoarseTrack
        loop through all planes and call fPlanes[ip]->SubtractStartTime()

Removed cuts in calculation of fXAtCer and fYAtCer

Add time windows for pos and neg ADC selection.

Added fGoodPosAdcMult and fGoodNegAdcMult variables

Remove cuts for  calculation of fXAtAero and fYAtAero

  Correction is done in the hitlist by comparing the trigger time
  from the TI to the trigger time in the FADC.  These generally have
  a fixed offset.  A FUDGE offset is included to make the difference
  between the FADC and TI times zero or close to zero.

  The FADC delivers times in units of 0.0625 ns.  The trigger time is in
  units of 4ns.  So the FADCs will be shifted by 64 units for each unit
  of trigger time slippage.

fFPTimeAll is the average focal plane time from all
  scintillator times. In EstimatedFocalPlaneTime fFPTimeAll is set to
  starttime which is the average FP time without using the DC track.

If there are tracks, then a focal plane time is calculated
for each track using the track information to improve the focal
plane time calculation and save for each track. Previously
 fFPTimeAll was being filled for each track, so in effect
fFPTimeAll was being filled with the FP time of the last track.
ALso there was no check that nFPTimeSum was not zero when
calculating average FP time, so one could get NaN values for
fFPTimeAll

To fix the problem , added  and modified line

Double_t fptime=-1000;
if (nFPTimeSum>0) fptime = FPTimeSum/nFPTimeSum;

And moved setting fFPTimeAll to THcHodoscope::FineProcess
Now fFPTimeAll is set the the average focal plane time of
the golden track.

  Newer root version
  Do make and scons
  Do ldd and version check after building
  Print python and scons versions

  Usual trigger time offsets for the 3 FADC crates are set
  in slipstudy.C

  This event type handler can be used to gather statistics on the slippage
  of trigger times in FADC250 headers.
  It looks at the relative trigger times between the ADCs and the TI modules
  and counts the number of times the relative times shift.

  The ADC trigger times will have a small offset relative to the TI trigger
  times.  The method AddExpectedOffset(roc, offset) allows the setting
  of this offset on a crate by crate basis.  If expected offsets are not
  set, the first event is used to determine the offsets.

  (Otherwise breaks with root 5)

  We'll start with version 0.90.0 and increment the second number up to 99.
  Goal is to declare a verison 1.0.0 sometime over the summer.

  To change the version, edit both SConscript.py and Makefile.

Modify THcDCTrack::TrackFit to calculate residuals for each plane
   without the plane involved in the track.

Add tree variable residualExclPlane