make float comparisons use AreSame
fix palette on transition in new battle menu
exit stat screen by clicking stats
scale unit info screen
fix backface detection on globe
fix interception geoscape scroll bug thingamotron
hah! whoops
std::max volume for intro
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/Battlescape/UnitInfoState.cpp

Commented out redundant code since now it's much easier to leave unit's stat screen