Undid a bug I introduced yesterday. numeric_cast<> never

worked with stock GCC; trying to get it to do that broke
vc-stlport.


[SVN r8703]

libs/conversion

@@ -1 +1 @@
-Subproject commit 3cc0db15d17b191a51a304cf65c762fb805bccee
+Subproject commit bc9129719e8aa757a21f3344587ae4059c49d43c