Exceptions support for C. exception_order test shows how to use type information to achieve correct catching order. Examples cleanup.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/branches/gsoc2008-maciekd@10671 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/c/class/runme.c

@@ -38,6 +38,7 @@ int main(int argc, char **argv) {
 
   printf("%d shapes remain\n", Shape_nshapes_get());
   printf("Goodbye\n");
-  return 0;
+
+  SWIG_exit(0);
 }