Building Boost.Build engine

Bootstrapping is done. To build, run:

    .\b2
    
To adjust configuration, edit 'project-config.jam'.
Further information:

    - Command line help:
    .\b2 --help
     
    - Getting started guide: 
    http://boost.org/more/getting_started/windows.html
     
    - Boost.Build documentation:
    http://www.boost.org/build/doc/html/index.html