Modify THcFormula and THcParmList to match changes to THaFormula
     (needed for reports)
  Small changes in THcInterface and detector classes for compatibility
     with new OO decoder and podd 1.6

  Don't start variables that are not member variables with f
  Declare temporary variables as locally as possible
  Remove some unused member variables from THcHodoscope.h

      Declare loop variables in the for statement
      Go back to UInt_t for some variables
      Don't prefix non-member variables with f

  Adds tests to THcHodoscope fiducial tracking efficiency
  Adds tests to THcCherenkov for Cerenkov efficiency

  For the most part this is making sure that the loop variable in
  a for loop is of the same type as the variable that it is compared
  against (Often a UInt_t).

This reverts commit e9ce1040.

Conflicts:
	src/THcHallCSpectrometer.cxx

  For the most part this is making sure that the loop variable in
  a for loop is of the same type as the variable that it is compared
  against (Often a UInt_t).

  Use InitArrays method in THcCherenkov and THcAerogel
  Null out all array pointers in the InitArrays method and
  call that method from all constructors so that it is always
  safe to delete these arrays.

Class for an Cherenkov detector consisting of two PMT's.
Fourth pull request. January 30 2014.
No need to cahnge the Map file.
New parameter hcer_tot_pmts = 2 is added to the hcana.param file
This code is for the coarse process of THcCherenkov class.
Names of all the variables are in lower case.

Variable Name   Description
phototubes      Nuber of Cherenkov photo tubes
adc             Raw ADC values
adc_p           Pedestal Subtracted ADC values
npe             Number of Photo electrons
npesum          Sum of Number of Photo electrons
ncherhit        Number of Hits(Cherenkov)

We have added a new parameter hcer_tot_pmts = 2 in hcana.param file.
It is equal to total number of PMTs in Cherenkov detector. With this
update, the THcCherenkov coarse process is complete. We have Raw adc,
pedestal subtracted adc, number of photo electrons and hits histograms
in the output root file for gas Cherenkov detector.

variables. Total photo electrons, total hits of adc 1, total hits of adc 2
and total hits. With this update we have transformed the FORTRAN code of
file /engine/HTRACKING/h_trans_cer.f to /hcana/ser/THcCherenkov.cxx

NOTE: The pedestal value in ENGINE is an integer but in hcana it is a
flaoting number. So it changes the pedestal substracted vlues of adc 1
and adc 2 and the number of photo electrons of adc 1 and 2 by very small
fraction. The difference of total photo electrons between ENGINE and hcana
is not more than 0.005.