Update Jamfile.v2

There can only be one project named boost/doc and we have that already under /doc/
Rename to something unique.
Merge pull request #6 from jzmaddock/patch-2

Update Jamfile.v2
Fix compilation of static visitors on GCC4.5.1
Add metadata file.
Merge pull request #8 from danieljames/metadata

Create metadata file.
Applied patches from Boost.TypeIndex