- turned out that the recent change to allow cancelling a powerup blend through a powerup giver did not work well so now there's an explicit 'Powerup.Color none' to do it that works a bit differently.
- fixed: ZDoom did not understand Boom's name for the Red Skull Key pickup message due to a typo.

Of course, just changing the name would break many old ZDoom mods so now Boom's name is explicitly being translated into ZDoom's before setting the string.
- gcc warnings suck...
- missed a return.