Fixing two issues with non-intrusive exception cloning support.

[SVN r72924]

build/Jamfile.v2

@@ -5,7 +5,10 @@
 # Distributed under the Boost Software License, Version 1.0. (See accompanying
 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
-alias boost_exception ;
-lib boost_exception : ../src/clone_current_exception_msvc.cpp : <toolset>msvc ;
+project boost/exception
+    : source-location ../src
+    : requirements <link>static
+    ;
 
+lib boost_exception : clone_current_exception_non_intrusive.cpp ;
 boost-install boost_exception ;