add tex_urban.Png

touch up icons.Png
Xcom1Ruleset: put clipSize back in ...

setVisible() default true

BattlescapeState: put in Console!
	- mapOver() shows items on ground under cursor.
DebriefingState: varname changes
BattleItem: remove dropped on alienTurn flag and all refs.
	- revert my changes to clipSize & ammoQty.
		- screwed with Tanks onboard Crafts ....
FpsCounter: surface adj. down a couple px
ResourcePack: debug string changes