*player->health (formerly the "HUD" health) is now to be known as player->rings, and now acts as the player's actual ring count
*player->mo->health (formerly rings + 1) is now always 1 when alive, regardless of ring count; if player with rings is damaged, this is untouched
Damage in normal SP/Coop gameplay has been tested and still works fine; still a lot of mess to clear up though
Tag damaging probably is broken now, I'll fix this later
Currently the main benefit of these changes is that a number of non-Object-related hazards/deaths no long rely on dummy MT_NULL objects or other hacks to tell the game how you were hurt/killed, yay
git-svn-id: https://code.orospakr.ca/svn/srb2/trunk@9039 6de4a73c-47e2-0310-b8c1-93d6ecd3f8cd
