Replacing tangerine with mksh & ed
    
    These two should build against base-runtime; mksh also
    buildrequires ed so it needs to be built first.  It would be
    great if we could have multiple components in one buildorder
    group and possibly even more groups here but it's hard to find
    tiny, easy to package components.
    
    Signed-off-by: Petr Šabata <contyk@redhat.com>