Changed torus example to write result to paraview file.

demo/src/torus.cc

@@ -205,6 +205,8 @@ int main(int argc, char* argv[])
   adaptInfo->reset();
   adapt->adapt();
 
+  torus.writeFiles(adaptInfo, true);
+
   for (int i = 0; i < dow; i++)
     delete parametricCoords[i];