Otherwise InitHistlist doesn't have the detector map
  and can't do setup of reference time stuff or sanity checks on the
  detector mapping

Some detector classes lacked the ability to get the appropriate
Apparatus character and were only working for HMS.

- Added range checks when adding data to hits. Now an error
is thrown instead of potentially getting core dump.

in THcDrifthChamberPlane::DefineVariable and output.def

Fixed mistake in calculating focal plane time from hodoscope
Change to check if hit has a corrected time.
Then change to use GetPosTOFCorrectedTime instead of GetPosCorrectedTime
and same for neg

  Default is to use new "invadc" parameters.  Use old style
  by setting Xtofusinginvadc=0

  in THcHodoscope

   in THcHodoscope::FineProcess

Lot's of changes to
 THcScintillator::ProcessHits
 THcHodoscope::EstimateFocalPlaneTimes
 THcHodoscope::FineProcess

  Replace > with >= so fGoodScinHits can get set

  Add a new parameter Xaero_tdc_offset to make sure valid tdc
  hits from a reference time corrected tdc are positive.
  Accept first first positve tdc hit after applying offset.
  Move array filling in CoarseProcess into Decode

  THcRawHodoHit gives reference time corrected TDC values
  THcScintillator plane adds a per plane offset to the raw tdc value
  First positive TDC value after adding offset is used

  Fix bad Addmodule argument (refchan)
  Print warning if expected reference time is missing
     (Probably means event is bad)

  (Assignment probably not actually done with these objects,
  so we might want to remove these methods.)

  May want to use a hit class that doesn't inherit from THcHodoscope
  as the Cerenkov is not using Neg tubes or TDCs.

  Separate methods for ref time subtracted and raw hits

used to determine focal plane time for each hodoscope plane.
Add code to THcScintillatorPlane:DefineVariables to write out
focal plane time, number of paddles hit that passed minimal TDc cut
and number of paddle hit that were used in determining the focal plane time.
Add calls to THcScintillatorPlane.h to Set and Get the focal plane time
and number of paddle hits used to determine focal plane time for each hodoscope plane.

  Nint of an Int gave a compiler error in newer gcc
  Commented out local variables that are not used

  Rename ScalerLoc so it doesn't conflict with class of same name in podd
  Ignore .pcm files
  Makefile does version check for root 6
  Address warnings in hodtest.C