Mercurial has all plugins disabled by default. So put this into *~/.hgrc*

    [extensions]
    hgext.mq =
    hgext.graphlog = 
    hgext.hgk = 

This enables the patch queue extensions as well as the *hg* *glog* and *hg* *view* commands. To set the correct submitter I have

    export HGUSER="$GIT_AUTHOR_NAME <$EMAIL>"

in *~/.bashrc*.