adapted extrudeProperties for new extrusion model

applications/utilities/mesh/generation/extrudeMesh/extrudeProperties

@@ -71,7 +71,8 @@ linearNormalCoeffs
 
 linearDirectionCoeffs
 {
-    direction       (0 0 1);
+    direction       (0 1 0);
+    thickness       0.05;
 }
 
 linearRadialCoeffs
@@ -89,7 +90,7 @@ sigmaRadialCoeffs
 
 // Do front and back need to be merged? Usually only makes sense for 360
 // degree wedges.
-mergeFaces true;
+mergeFaces false;   //true;
 
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //