fix warnigns and missing headers

stuff/debug.hh

 #ifndef DUNE_STUFF_DEBUG_HH
 #define DUNE_STUFF_DEBUG_HH
 
+#include <cstring>
+
 #define SEGFAULT                                                                                                       \
   {                                                                                                                    \
     int* J = 0;                                                                                                        \

stuff/math.hh

 #ifndef DUNE_STUFF_MATH_HH
 #define DUNE_STUFF_MATH_HH
 
+#include <vector>
+#include <limits>
+#include <algorithm>
+#include <cstring>
+
 namespace Stuff {
 
 /** \todo DOCME **/

stuff/mem_debug.hh

@@ -55,14 +55,14 @@ void* operator new[](unsigned long size, const char* file)
   return p;
 }
 
-void operator delete(void* p)
+void operator delete(void* p) throw()
 {
   //    std::cout << "operator delete(" << p << ")" << std::endl;
 
   free(p);
 }
 
-void operator delete[](void* p)
+void operator delete[](void* p) throw()
 {
   //    std::cout << "operator delete[](" << p << ")" << std::endl;