8.31: JELP::Base has adopted the same sort of parameter parser as Base::UserCommands.
            server handlers can now specify optional parameters, etc. just as with user handlers.
            all affected modules updated to make use of the new server parameter parser.
            'source' now only matchers users and servers. it was never supposed to match channels in the first place.
            the former behavior of 'source' can now be achieved with 'object'.