fix a couple of loose ends: sdl_mixer is informed of that OGG is provided by Tremor with its own macro, there is no more a segfault on Tremor cleanup, added new event type and timestamp entry for SDL, removed spurious characters from the japanese translation, uSound errors now are output with SDLTry, uSound doesn't need sound preloading any more

GCI task: iOS Portuguese

graphics fix. take 3

Fixed unicode italian missions translation update

one more mask, reduce hog count on ruler map

Italian update - ditched missions file since encoding appears to be incorrect.