stuff stuff

Xcom1Ruleset: remove Universal Fist from Chrys.
AlienBAIState: switch arguments in distance()
BattlescapeState: add OverLoad (weight) surfaces for warnings
	- on rankIcon (floating) and rankIcon (iconBar)
	- draw kneelIndicator in cTor
	- fuseTimers, lengthen period.
Inventory: fuseTimers, lengthen period.
Map: use SDL_Delay() instead of complicated reveal pattern ...
	- OverLoad indicator x3
TileEngine: fixup damaging unconscious units & tidy a bit.
IntroState: get the fade code
ListLoadState: use the fade code
MainMenuState: use the fade code
StartState: remove some comments
BattleUnit: change some debug.
SavedBattleGame: remove some debug, local varname change & formatting.
Tile: formatting, remove some comments, descriptions, varname change ....

- throw some const around