Modernize and clean up cmake and fix some warnings

CMakeLists.txt

CMakeModules/Cxx11Test.cmake

CMakeModules/SimoxConfig.cmake.in

CMakeModules/SimoxMacros.cmake

GraspPlanning/CMakeLists.txt

...Planning/ExternalDependencies/qhull-2003.1/CMakeLists.txt

GraspPlanning/examples/GraspPlanner/CMakeLists.txt

GraspPlanning/examples/GraspQuality/CMakeLists.txt

MotionPlanning/CMakeLists.txt

MotionPlanning/Planner/BiRrt.cpp

MotionPlanning/examples/GraspRRT/CMakeLists.txt

MotionPlanning/examples/IKRRT/CMakeLists.txt

MotionPlanning/examples/MultiThreadedPlanning/CMakeLists.txt

...nning/examples/MultiThreadedPlanning/MTPlanningWindow.cpp

MotionPlanning/examples/PlatformDemo/CMakeLists.txt

MotionPlanning/examples/RRT/CMakeLists.txt

MotionPlanning/examples/RrtGui/CMakeLists.txt

MotionPlanning/tests/CMakeLists.txt

SimDynamics/CMakeLists.txt

...namics/DynamicsEngine/BulletEngine/BulletCoinQtViewer.cpp