- HeaderExporter now doesn't export names that begin with "_"

- Bug in ClassExporter, was adding an attribute to the members of base classes in GenerateVirtualMethods


[SVN r18516]

libs/python

@@ -1 +1 @@
-Subproject commit c81af4ffe0399a40a4ff6efab10d7ce8fa7e6cfb
+Subproject commit 19eff7791d88254f09b749fc06dc4187751bc77c