Upldate to latest analzer 1.5 with Hall C specific THaTrack members
Modify cuts definition for the HMS calrimeter calibration.

In hcal_calib/hcal_replay_cuts.def:
   add one_clust condition;
   activate good_beta condition (defined for run 52949);
   define 2 versions of the Reconstruct_master cut, one for initial
   calibration and another for iterative calibration.
Make counting of calorimeter tracks consistent with Engine.

Increment fNtracks++ each time a cluster matches a spectrometer
track. Only best matches were counted before. Move fNtracks++ from
THcShower::CoarceProcess to THcShower:MatchCluster.
Add method for getting coordinate corrected track total energy in the
calorimeter.

Add list of clusters fClusterList in THcShower class.
Add method THcShower::GetShEnergy(THaTrack*).
Add method THcShowerClusterList::clear() in THcShowerCluster.h.
Add example code to assign energies to tracks.

    Add TrackEnergies method in THcHallCSpectrometer class. It is
    called from TrackCalc metod.
Revise misplaced lines in THcShower:GetShEnergy method which caused
crashes.
Add per event purge of ShowerClusterList in order to reduce grow of
memory consumption with event number.

       Add THcShowerClusterList::purge() method to purge and clean
       THcShower::fClusterList by the end of each event, in
       THcShower::Clear().
Move energy to track assignment from THcHallCSpectrometer to the
shower counter's FineProcess.

       Remove THcHallCSpectrometer::TrackEnergies method.
       Add GetShEnergy call for each tack in THcShower::fineProcess.