ENH: Libraries are not marked as ADVANCED now.

Modules/FindFLTK.cmake

@@ -109,9 +109,4 @@ ENDIF(FLTK_FLUID_EXECUTABLE)
 MARK_AS_ADVANCED(
   FLTK_VERSION_1.0.11
   FLTK_VERSION_1.1
-  FLTK_INCLUDE_DIR
-  FLTK_BASE_LIBRARY
-  FLTK_GL_LIBRARY
-  FLTK_FORMS_LIBRARY
-  FLTK_IMAGES_LIBRARY
 )