[airstrike] Triggers and level ending

[Erik Auerswald]

Hi,

> You can use msg_kill, if you want to kill the sprite completely. This
> should be with explosion and stuff, so it will look all right.

This does not look too good and is error prone since the kill is
instantanious which may result in too many suicides at once. When using
msg_set_damage() the plane dies the same way as when shot down.

> Currently there is no way to get number of hitpoints (but maybe there
> should be. Tell me if you really need it.).

It is not really needed, I would just have used it if available.

> > Attached is an svn diff of my changes so far.

OK, I'll commit it.

Erik