OpenCV3 support: Added missing changes from CMakeLists.txt
OpenCV3 support: Added missing changes from CMakeLists.txt

chen0510566/rtabmap,markusgrotz/rtabmap,chen0510566/rtabmap,srmanikandasriram/rtabmap,MASKOR/rtabmap,chen0510566/rtabmap,MASKOR/rtabmap,srmanikandasriram/rtabmap,srmanikandasriram/rtabmap,markusgrotz/rtabmap,markusgrotz/rtabmap,MASKOR/rtabmap