rocksdb

See #1029

Compilation is completed on debian, run error

Hi, I'm just investigating the implementation, and one thing that would really help is adding comments for each of the main structs. It shouldn't take too much time for someone that already knows what is what, and greatly speeds up navigating around.

Thanks!

Resolving this issue involves going through the handlers in the modules/ tree alongside the matrix client and server specification to flag methods required to be rate-limited. Currently some are, but many are not.

Example of a method with the flag:

resource::method
method
{
    resource, "GET", handler,
    {
        method.REQUIRES_AUTH |
        method.RATE_LIMITED
    }
};
`