use PROJECT_NAME instead of the project's name

catkin_lint complains about this and it's a somewhat valid complain...

CMakeLists.txt

@@ -131,9 +131,9 @@ include_directories(${THIS_PACKAGE_INCLUDE_DIRS}
                     )
 
 # Generate and install version.h
-string(REGEX REPLACE "^([0-9]+)\\..*" "\\1" MOVEIT_VERSION_MAJOR "${moveit_core_VERSION}")
-string(REGEX REPLACE "^[0-9]+\\.([0-9]+).*" "\\1" MOVEIT_VERSION_MINOR "${moveit_core_VERSION}")
-string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" MOVEIT_VERSION_PATCH "${moveit_core_VERSION}")
+string(REGEX REPLACE "^([0-9]+)\\..*" "\\1" MOVEIT_VERSION_MAJOR "${${PROJECT_NAME}_VERSION}")
+string(REGEX REPLACE "^[0-9]+\\.([0-9]+).*" "\\1" MOVEIT_VERSION_MINOR "${${PROJECT_NAME}_VERSION}")
+string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" MOVEIT_VERSION_PATCH "${${PROJECT_NAME}_VERSION}")
 set(MOVEIT_VERSION_EXTRA "Alpha")
 set(MOVEIT_VERSION "${MOVEIT_VERSION_MAJOR}.${MOVEIT_VERSION_MINOR}.${MOVEIT_VERSION_PATCH}-${MOVEIT_VERSION_EXTRA}")
 message(STATUS " *** Building MoveIt! ${MOVEIT_VERSION} ***")