Indexing suite

Hello,
There is this [repo](https://github.com/JohnReid/boost-indexing-suite.git) where some users have added more std containers via the index suite. like std::multi_map and others.
What would be involved in getting this included in the master boost.python?

Also, where do users ask questions nowadays. [This](https://www.boost.org/community/groups.html) refers to [Python C++-sig](http://www.python.org/community/sigs/current/c++-sig/) that doesn't exist anymore