Merge pull request #13 from MarkKJones/master

Update for beam and gold tracks in analysis
Merge pull request #14 from MarkKJones/master

New script to compare hcana and engine golden tracks
Golden track comparison:
comp_goldtrack_engine_hcana.C is modified to compare the number of
golden track and chi2/ndf of golden track between ENGINE and hcana.
comp_goldtrack_engine_hcana.C

comp_goldtrack_engine_hcana.C is modified to include Golden track
parameters and their differences.
Merge pull request #15 from zahmed9/master

Golden track comparison:
Modify macros that compare engine and hcana replays so that looping
through the tree stays synced with event number.