message: In class Array2D, add method DeleteAll; add minimal doxygen doc.
diff: @@ -285,6 +285,7 @@ class Array2D;
  template <class T>
  void Swap(Array2D<T> &, Array2D<T> &);
  +/// Two dimensional array using row-major storage
  template <class T>
  class Array2D
  {
  @@ -325,6 +326,9 @@ public:
  inline void MakeRef(const Array2D &master)
  { N = master.N; array1d.MakeRef(master.array1d); }
  + /// Delete all dynamically allocated memory, reseting all dimentions to zero.
  + inline void DeleteAll() { N = 0; array1d.DeleteAll(); }
  +
  /// Prints array to stream with width elements per row
  void Print(std::ostream &out = mfem::out, int width = 4);
  };
  