Merge pull request #79 from IjonTichy/upstream

 Manathor armor no longer goes 100 -> 150 -> 300 -> 300 with yellow armor in the map
Parias' Wraithverge no longer takes 160 mana in DM.
Compiled ACS, changelog.txt
Duke was resisting QuakeFire normally, rather than being 10% weak to it like everything else.
One of these days I will pull from upstream *before* doing shit