Don't sort commiters
    
    Sorting users by alphabet gives higher precedence to users by their nick
    name. This does not seems to be right, since user with nickname starting
    by "a" is probably not any better then user with nick name starting by
    "b".
    
    OTOH, it seems that Pagure returns committers in order as they gained
    the commit privileges (not 100% sure), which to me is much better
    metrics, since if nothing else, the earlier the committer might have
    more experiences with the package.
    
    Signed-off-by: Vít Ondruch <vondruch@redhat.com>