Auto detect which Qt version to use (Qt5 has priority if both are installed). ROS Kinetic fix for vtk libproj.so not found bug.

tools/DataRecorder/CMakeLists.txt

@@ -12,9 +12,9 @@ SET(INCLUDE_DIRS
     ${PCL_INCLUDE_DIRS}
 )
 
-IF("${RTABMAP_QT_VERSION}" STREQUAL "4")
+IF(QT4_FOUND)
     INCLUDE(${QT_USE_FILE})
-ENDIF()
+ENDIF(QT4_FOUND)
 
 SET(LIBRARIES
     ${OpenCV_LIBRARIES}