Use utf-8 encoding

[[Imported from SVN: r6145]]

dune/common/debugstream.hh

@@ -273,7 +273,7 @@ namespace Dune {
     /*! \brief explicit specialization so that enums can be printed
 
        Operators for built-in types follow special
-       rules (§11.2.3) so that enums won't fit into the generic
+       rules (§11.2.3) so that enums won't fit into the generic
        method above. With an existing operator<< for int however
        the enum will be automatically casted.
      */

dune/common/exprtmpl.hh

@@ -12,8 +12,8 @@
 /*! @file
 
    @brief This file provides expression templates for the
-         Dense Matrix and Vector Template Library and for the
-         Iterative Solvers Template Library.
+         «Dense Matrix and Vector Template Library» and for the
+         «Iterative Solvers Template Library».
    @verbatim
    $Id$
    @endverbatim