message: Fixed a typo in the documentation of CalcHessian.
diff: @@ -427,7 +427,7 @@ public:
  /** Each row of the result DenseMatrix @a Hessian contains upper triangular
  part of the Hessian of one shape function.
  The order in 2D is {u_xx, u_xy, u_yy}.
  - The size (#Dof x (#Dim (#Dim-1)/2) of @a Hessian must be set in advance.*/
  + The size (#Dof x (#Dim (#Dim+1)/2) of @a Hessian must be set in advance.*/
  virtual void CalcHessian (const IntegrationPoint &ip,
  DenseMatrix &Hessian) const;
  