Update boost::apply to use variadics and perfect forwarding; refs #26

test/Jamfile.v2

@@ -81,3 +81,4 @@ run bind_noexcept_mf2_test.cpp ;
 run std_placeholders_test.cpp ;
 run apply_test.cpp ;
 run apply_test2.cpp ;
+run apply_rv_test.cpp ;