don't add to histograms.

1) Add test for root version when filling sighit1
2) Fixed line which had wrong order in Set and needed two integer values
   sighit1->Set(1,(Int_t)(hit->fADC_pos - 470.7));

to the (Hall C ENGINE style) map file being used.

Put map files in MAPS subdir.
Define correct map for run 50017 in test.database.
Add a script to display drift chamber hitmaps.
Fix make_cratemap.pl so that it makes an entry in db_cratemap.dat
  for all Fastbus slots.

use the run number to determine which parameter and map files to use.

string variables from the Hall C style parameter files.  String
variables are loaded into a THaTextvars object that is held in the
THcParmList object.  PrintFull will now print all the string variables
as well as the numerical variables.  Added GetString, AddString and
RemoveString methods to access and modify the string variables.

for older ROOT version wasn't working.

the same protocol (https, ssh, or git) that the main project is.

number of planes and Plane names are still hard wired.

function or detector.

be made either in output.def or by analyzing root tree.

ssh key installed on github can still get podd.  (No one should be uploading
changes to podd).

Add ability to make hit map histograms to the shower counter

Fixed corrupted THcScintilatorPlane.cxx

Conflicts:

	src/THcScintillatorPlane.cxx

add simple code to register ADC and TDC hits into global
variables so that hit maps can be made.

Add ThcSignalHit class