master
Rebase to master to fix conflicts
fix RecoTracker/Pixel* subsystems inclusions guards to comply withc cmssw rule 4.1
Refactor of the PortableCollections
Adapted PixelTracking removing MultiCollections
Rename quadruplet cut params in CA
Implement Patatrack cut on quadruplets that compairs the curvature of its two triplets during N-tuplet building