doxygen fixes

[[Imported from SVN: r4734]]

common/iteratorfacades.hh

@@ -156,8 +156,8 @@ namespace Dune
      * void increment()
      * </pre>
      *
-     * For an elaborate explanation see the STL Documentation
-     * @link http://www.sgi.com/tech/stl/iterator_traits.html @endlink
+     * For an elaborate explanation see the
+     * <A HREF="http://www.sgi.com/tech/stl/iterator_traits.html">STL Documentation</A>!
      */
     typedef T DerivedType;
 
@@ -288,8 +288,8 @@ namespace Dune
      *
      * </pre>
      *
-     * For an elaborate explanation see the STL Documentation
-     * @link http://www.sgi.com/tech/stl/iterator_traits.html @endlink
+     * For an elaborate explanation see the
+     * <A HREF="http://www.sgi.com/tech/stl/iterator_traits.html">STL Documentation</A>
      */
     typedef T DerivedType;
 
@@ -442,8 +442,8 @@ namespace Dune
      * DifferenceType distanceTo(j) const;
      * </pre>
      *
-     * For an elaborate explanation see the STL Documentation
-     * @link http://www.sgi.com/tech/stl/iterator_traits.html @endlink
+     * For an elaborate explanation see the
+     * <A HREF="http://www.sgi.com/tech/stl/iterator_traits.html">STL Documentation</A>
      */
     typedef T DerivedType;
 

common/typetraits.hh

@@ -165,7 +165,7 @@ namespace Dune
    * @brief Checks wether a type is derived from another.
    *
    * Inspired by
-   * @link http://www.kotiposti.net/epulkkin/instructive/base-class-determination.html @endlink
+   * <A HREF="http://www.kotiposti.net/epulkkin/instructive/base-class-determination.html"> this website</A>
    */
   template<class From, class To>
   class Conversion