travis - extend library search path in order to find libnglib.so at runtime
travis - extend library search path in order to find libnglib.so at runtime

Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master