more death types (now weapons know whether the hit was primary or secondary, whether...

more death types (now weapons know whether the hit was primary or secondary, whether it was splash damage or not, and whether the projectile bounced before the hit)

git-svn-id: svn://svn.icculus.org/nexuiz/trunk@4680 f962a42d-fe04-0410-a3ab-8c8b0445ebaa