[boost] [autoindex] Default building with an Index

The documentation for VMD supports building with an index but I had not made this the default situation. This is my mistake. Can I assume the official build of the docs for a release supports building with an index via autoindex ? If so I will change the jamfile to support this as the default for the future and assume any end-user wishing to regenerate the docs has autoindex support also as part of the distribution as long as my jamfile is setup correctly for autoindex.