Added - #define _CRT_NOFORCE_MANIFEST if we also have to #undef _DEBUG

          this isn't really an elegant solution, perhaps people trying to
          debug python (BOOST_DEBUG_PYTHON defined) will really have to
          use the debug version of the CRT with the latest .NET

          There is also a collision if the user happens to have
          #define _CRT_FORCE_MANIFEST which I didn't address


[SVN r30570]

libs/python

@@ -1 +1 @@
-Subproject commit bff975f08cd72ff90c25d9dea6bfac428f3adca8
+Subproject commit 9205f507b0cfc7c6e05c1ac3e6580c834a99f7df