Corrected the text of the "Enemy has all the artifacts" message

+ XMPGame -> XMPGameDemo (keeps servers separate/hidden from non-demo servers).

+ fix for vehicle locations occasionally getting out of sync between clients and server

+ Fix for trace flag that broke the editor - forwarding to Tantalus.

+ Localization for XMP-Alcazar.

+ Fixed editactor / editobject / editdefault from crashing when used on dedicated servers (was helpful even at this late stage of the game).
Added lightning actor for marsh.
Fixed access none in UI accessor for the pawn class.
Fixed score bug where players were getting headshot and artifact carrying bonuses when the deployables killed another player.