more istlification -- still not even close to being finished

[[Imported from SVN: r615]]

istl/Makefile.am

@@ -2,7 +2,7 @@
 
 SUBDIRS = . tutorial test paamg
 
-SOURCES = allocator.hh basearray.hh bcrsmatrix.hh bvector.hh gsetc.hh io.hh istlexception.hh istl.hh vbcrsmatrix.hh vbvector.hh ilu.hh operators.hh preconditioners.hh solvers.hh indexset.hh communicator.hh remoteindices.hh mpitraits.hh interface.hh indicessyncer.hh matrixindexset.hh selection.hh plocalindex.hh localindex.hh scalarproducts.hh solvercategory.hh bdmatrix.hh matrixutils.hh schwarz.hh owneroverlapcopy.hh
+SOURCES = allocator.hh basearray.hh bcrsmatrix.hh bvector.hh gsetc.hh io.hh istlexception.hh istl.hh vbcrsmatrix.hh vbvector.hh ilu.hh operators.hh preconditioners.hh solvers.hh indexset.hh communicator.hh remoteindices.hh mpitraits.hh interface.hh indicessyncer.hh matrixindexset.hh selection.hh plocalindex.hh localindex.hh scalarproducts.hh solvercategory.hh bdmatrix.hh matrixutils.hh schwarz.hh owneroverlapcopy.hh matrix.hh
 
 istldir = $(includedir)/dune/istl
 istl_HEADERS = $(SOURCES)

istl/matrix.hh

@@ -3,25 +3,34 @@
 #ifndef DUNE_MATRIX_HH
 #define DUNE_MATRIX_HH
 
+/** \file
+    \brief A dynamic dense block matrix class
+ */
+
 #include <vector>
-#include "simplevector.hh"
+#include <dune/common/simplevector.hh>
 
 namespace Dune {
 
   /** \brief A generic dynamic matrix
-      \ingroup Common
+      \addtogroup ISTL
    */
-  template<class T>
+  template<class T, class A=ISTLAllocator>
   class Matrix
   {
-    class ISTLError : public Exception {};
   public:
 
+    /** \brief Export the type representing the underlying field */
+    typedef typename T::field_type field_type;
+
     /** \brief Export the type representing the components */
     typedef T block_type;
 
+    /** \brief Export the allocator */
+    typedef A allocator_type;
+
     /** \brief Type for indices and sizes */
-    typedef int size_type;
+    typedef typename A::size_type size_type;
 
     /** \brief Create empty matrix */
     Matrix() : data(0), rows_(0), cols_(0)