Updated NpolDetectorConstruction file to represent the 108 E bars in the top/bottom arrays. 13 bars in the front portion and 14 bars in the back portion.  I have updated the top/bottom veto-tagger arrays as well giving them 13 in the front and 14 in the back detectors.

 I also made a few minor updates to the comments in this file.
Added code to create histograms.
Added analysis code to produce ROOT readable histograms.
Bug fix: Edep array is set to 0 at the beginning of each event
Merge pull request #1 from JeffersonLab/dwilbern

Dwilbern
Creating dE/E histograms.
Updates to the NpolEventAction and NpolSenstiveDetector files to include energy cuts on the detectors taking "hits" during the event.  This is a first past attempt at identifying (n,p) events from energy-tracking information.

Also updated the npol.mac file so the initial energy of the neutron is 2500 MeV.  The lowest energy neutron in the proposal is 2110 MeV.  This is a new base line.
Multithreading Fixed
NpolPrimaryActionGenerator has been updated to generate neutrons at a point 7 meters in front of the first layer of detectors in the analyers (center of that layer).  NpolDetectors was modified to include a larger world to accommondate.  This generator has angular cuts so as to illuminate only the front arrays area.

Cuts in NpolEventAction have been tweak but still can't get similar dE/E spectra that Andrei has gotten.  Suspect we need another selection criteria.

Minor formating changes to make some files more "readable".
Forgot to save NpolSensitive Detector before upload.
Added to the NpolHits.cc and NpolHits.hh files G4ThreadLocal requirements in attempt to stop the segmentation faults.  This is necessary for thread safety however, it has not stopped the core problem which appears to be in senstitive detectors.  I have also cleaned up some code and looked at issues in sensitive detectors.
Updated some files, tabs, and moved the sensitive detector naming to the detector construction file from the sensitive detector file.  Search for the error in the multithreading code but could not find the answer.  Have some good core dumps for the debugging process.
Merge pull request #4 from JeffersonLab/tireman

Tireman