cms-sw/cmssw — pull request #4099 by JuantAldea (2014-06-03 12:20:46+00:00)
Title: TrackBase & HitPattern redesign discussed on the RECO meeting of 08/05/2014

Documentation about the changes:
* https://twiki.cern.ch/twiki/bin/viewauth/CMS/TrackingHitPatternRedesign
* https://indico.cern.ch/event/317592/session/4/contribution/18/material/slides/0.pdf

The Backward compatibility issue presented on the slides is solved.