Initial pointer adoption tests

Have instances actually dispose of their held C++ objects!


[SVN r12653]

libs/python

@@ -1 +1 @@
-Subproject commit 8cc9080d367448edc08d6c8725282d2d5c5d0657
+Subproject commit 90647f30f856040c218b3605791c2bd96636ca0c