fix typo
fix wonky UFO doors
layout
add EqualTerms v1, Thunder craft, LightMachineGun, update rulesets. + merge

Merge branch 'master' of https://github.com/SupSuper/OpenXcom into oXc_kL
Conflicts:
	src/Battlescape/TileEngine.cpp
	src/Battlescape/UnitSprite.cpp
ok, add the rest of the files .....