* the starfield is now an array of stars.
* fixed wall rendering (offset issues and disappearing left wall).
* 32 seekers on fragbomb explosion, not 16.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/ttyvaders/trunk@50 92316355-f0b4-4df1-b90c-862c8a59935f