message: Update GetDLFI_Marker documentation.
diff: @@ -162,7 +162,9 @@ public:
  coefficients. */
  Array<LinearFormIntegrator*> *GetDLFI() { return &domain_integs; }
  - /// Access the element attribute marker (of length mesh->attributes)
  + /** @brief Access all boundary markers added with AddDomainIntegrator().
  + If no marker was specified when the integrator was added, the
  + corresponding pointer (to Array<int>) will be NULL. */
  Array<Array<int>*> *GetDLFI_Marker() { return &domain_integs_marker; }
  /** @brief Access all integrators added with AddDomainIntegrator() which are
  