Fixed ticket #534 (Segmentation fault when checking VLC sourcecode)

Fixed all valgrind errors.

http://sourceforge.net/apps/trac/cppcheck/ticket/534

src/tokenize.cpp

@@ -2644,6 +2644,7 @@ bool Tokenizer::simplifyIfNotNull()
         {
             deleteFrom->deleteNext();
             deleteFrom->deleteNext();
+            tok = deleteFrom;
             ret = true;
         }