TUT: basic, IO, preProcessing, VV: clean up tutorials

- TUT: mesh: add missing SnakeRiverCanyon files
- TUT: mesh: add missing cp source in a foamyHexMesh tutorial

tutorials/verificationAndValidation/schemes/divergenceExample/Allrun

@@ -11,6 +11,7 @@ then
     savePlots=true
 fi
 
+restore0Dir
 
 runApplication blockMesh
 
@@ -27,8 +28,9 @@ do
     if [ "$savePlots" = true ]
     then
         # Save the line plot
-        mv postProcessing/sample1/100/line1_T.xy line1_T_"${schemeTag}".xy
+        mv -f postProcessing/sample1/100/line1_T.xy line1_T_"${schemeTag}".xy
     fi
+
 done < system/schemesToTest
 
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