message: Don't build CP2k unless Molequeue is enabled.
  Fixes
diff: @@ -97,7 +97,6 @@ add_subdirectory(bonding)
  add_subdirectory(commandscripts)
  add_subdirectory(coordinateeditor)
  add_subdirectory(copypaste)
  -add_subdirectory(cp2kinput)
  add_subdirectory(crystal)
  add_subdirectory(customelements)
  add_subdirectory(editor)
  @@ -134,6 +133,7 @@ endif()
  if(USE_MOLEQUEUE)
  add_subdirectory(apbs)
  + add_subdirectory(cp2kinput)
  add_subdirectory(gamessinput)
  add_subdirectory(quantuminput)
  add_subdirectory(scriptfileformats)
  