Fixed is_base_and_derived to work correctly with non-class types.

Moved to object_traits.hpp from conversion_traits.hpp


[SVN r12353]

libs/type_traits

@@ -1 +1 @@
-Subproject commit b57557b3c3d2560c2a4d1a71f44b908fbaf3de9e
+Subproject commit 77c0127cc6d428641f31f6189cc9d549726841c4