added contrail effects to sniper shots
fix client join/leave race with master server ping
Generalise AttackMove to support anything with IMove and AutoTarget.

Also removes the unnecessary JustMove parameter.
Add AttackMove to C&C helicopters.

The other mods don't allow aircraft to AutoTarget.
English please
stich the black wreck together
merged the giant crater into one tile
merged the bottom of the big rock
also a dead worm
category resorting
identical to the right two tiles from 443

BLOXICE and BLOXTREE redundancy
remove building bibs to avoid confusion
randomized bricks
categorize everything
fixed a crash in the actor border rendering
fixed missing Requires: freetype2 on Red Hat & friends
Disables "building"-speech when nothing more can be built
Add Ripley` to AUTHORS
added mods/common/lua scripts
added mods/cnc Lua scripts