worsen relation when bombarding a minor (to that minor)

I remember this as a bug being mentioned, and indeed it seems
it's still there. So, you could bomb a minor almost to death but still
be on max relation.
I wonder how this turns out; it's possible that AI plays worse, but
also that it plays better. This toggling between presents and bombing
of the same minor is always crazy. If it just forgets about presents
if bombing at all since relation is so bad then - good.
eliminate a possibility for inconsistent order

When setting orders according to type, use the type of the leading
ship of a fleet to set all orders.
exclude subjugated minors from government change events

It was probably intended this way. However...one may say
the Americans subjugated the Germans at the end of world war 2,
but then the flight bridge during the Berlin blockade changed
the relation. So it's not fair that it forever stays on hostile. :P
display "subjugated by <race>" in diplomacy menu

Subjugated races subjugated by oneself were displayed in the same way
as the ones subjugated by another major.
don't improve relation to minor if terraforming after subjugating