message: set nonlininteg.hpp from the master
diff: @@ -392,6 +392,7 @@ public:
  DenseMatrix &elmat);
  };
  +
  /** This class is used to assemble the skew-symmetric form of the nonlinear term
  arising in the Navier-Stokes equations
  \f$.5*(u \cdot \nabla v, w ) - .5*(u \cdot \nabla w, v )\f$ */
  