fix multi-shot related game ends leading to incomplete stats, fixes issue #372

More Qt-ish code, fix couple warnings.

Unset room restrictions on player/team joins when changing room admin

More precision

forgot to add back c96ff1a053d0

fix for issue #376 (embedding barrels in ceiling)

Fix line endings, add missing amMine entry

teleport hack fixes: * don't let hogs fall into other hogs, barrels or other gears * stop animation on damage (doesn't work with invul, sadly) * don't force waiting for ground-contact in inf attack mode * fix initially placing hog right next to instant-mine causing bugs

adjust velocity when entering/exiting the 4x routine

Let's try *4 instead. Not nearly as much of a win, but might be usable.