Boost.Jam 3.1.13

Minor changes, release that will match the sources with the Boost 1.34.0 release.

* Reordering of built in BOOST_BUILD_PATH directories.
* Builds with intel-win32.
* -lx option now attempts to close dead dialogs, win32 only. THanks to Bronek Kozicki.
* Fix return value from Python calls.
* Patch from Andreas Fredriksson.