re-synchronize to master

CMakeLists.txt

Documentation/Examples/CMakeLists.txt

Documentation/Examples/cascade_example.cc

Documentation/Examples/geometry_example.cc

Documentation/Examples/helix_example.cc

Documentation/Examples/staticsequence_example.cc

Framework/Cascade/CMakeLists.txt

Framework/Cascade/Cascade.h

Framework/Cascade/SibStack.h

Framework/Cascade/sibyll2.3c.h

Framework/Cascade/testCascade.cc

Framework/Geometry/CMakeLists.txt

Framework/Geometry/CoordinateSystem.h

Framework/Geometry/Helix.h

Framework/Geometry/Line.h

Framework/Geometry/Point.h

Framework/Geometry/RootCoordinateSystem.h

Framework/Geometry/Trajectory.h

Framework/Geometry/testGeometry.cc

Framework/ProcessSequence/CMakeLists.txt