std::unique_ptr std::auto_ptr tidyup

Add docs on additional support
Additional testing for invalid usage for parameter inputs

Examples/test-suite/python/cpp11_std_unique_ptr_runme.py

@@ -33,6 +33,8 @@ exception_thrown = False
 try:
     s = takeKlassUniquePtr(kin)
 except RuntimeError as e:
+    if "cannot release ownership as memory is not owned" not in str(e):
+        raise RuntimeError("incorrect exception message");
     exception_thrown = True
 if not exception_thrown:
     raise RuntimeError("double usage of takeKlassUniquePtr should have been an error")