hcana.

latest naming conventions in hcana code.

       Change of tree branch names in THcShowerCalib.h and
       THcPShowerCalib.h.

hcal.param
   1) gains for run 303,
   2) hcal_AdcNegThreshold=0.
   3) hcal_AdcPosThreshold=0.

pcal.param
   1) gains for run 464
   2)pcal_AdcNegThreshold=0.
   3)pcal_AdcPosThreshold=0.
   4)pcal_arr_AdcThreshold=0.0

Modified DEF-files for new names for the Cherenkov and Aerogel

calibration codes.

calorimeter.

      In THcShowerCalib, move per event Root branch assignments into
      the Init step, such that branch assignments are done one time,
      before event loops.

    Works now with Root6 and KPP data.