Force (via bool) simHit matching without CF pointers from digiSimLinks
Bug fix for unitialized pointers

Fix a bug related to unitialized pointers. With
standard configurations this bug will cause no problems.
But if someone changed the configured random engine
type to not be TRandom3 for FastSimulation it could
cause a seg fault. Bug was introduced in 7_0_X in
November.
Merge pull request #2461 from wddgit/bugFixUnitialized

FastSim fix -- Bug fix for uninitialized pointers
Merge pull request #2285 from wmtford/hitAssocFix_70X_from_700p12

Force (via bool) simHit matching without CF pointers from digiSimLinks
Merged seedingLayersFor70X from repository perrotta
Use std::unique_ptr for all helper objects creted in PixelTrackReconstruction constructor