STYLE: update some examples for mesa-18.3.4

- still needs more testing to determine the best combination of versions

makeParaView.example

@@ -9,11 +9,12 @@
 
 # mesa=mesa-11.2.2
 # mesa=mesa-13.0.3
-mesa=mesa-17.1.1
+# mesa=mesa-17.1.1
+mesa=mesa-18.3.4
 
 set -x
 ./makeParaView \
-    -mpi=0 \
+    -mpi \
     -mesa-prefix $WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$mesa \
     -python \
     -suffix mesa-mpi-py \