fix fuel/fire
fix reservation/kneeling error
include tu cost for moving item
merge:

Use rulesetTU for moving grenade to hand.

Merge branch 'master' of https://github.com/SupSuper/OpenXcom into oXc_kL
Conflicts:
	src/Battlescape/AlienBAIState.cpp
	src/Battlescape/BattlescapeGame.cpp
	src/Savegame/Tile.cpp