Build: replace hand-made Makefile with one generated by Automake
    
    The neither build nor dist targets work completely. This is temporary
    breakage enabling further work.
    
    https://fedorahosted.org/freeipa/ticket/6418
    
    Reviewed-By: Martin Basti <mbasti@redhat.com>
    Reviewed-By: Christian Heimes <cheimes@redhat.com>