Changed Torpedo muzzle bone
Prevent shore-lining abuse
Added new target bones

So that Subs can target the ACU if it's only just underwater, more
important with Cybran because of the Torpedo upgrade threat.
Update the Changelog
Stop Naval Factories from sinking
First attempt and cleanup
Final version of ACU fix
Port fix to sACU and clean up whitespace
Re-add code that went missing
Merge 'icedreamer/Cybran-ACU-Fix' into develop

Conflicts:
	readme.md
Update Readme for drones

Closes #132
Cached DiskGetFileInfo to reduce disk i/o, can cause stutter for players
with heavy platter disk load
Removed trailing spaces

Conflicts:
	lua/aibrain.lua
Score accumulation on sim side now uses 1 thread instead of 3
Cleanup
Pause music when volume is 0

Music was played in background even when volume was 0, this resulted in
30kb / s constant diskreads which can cause stutter if a platter-disk is already
under heavy load (torrents etc)
Optimized build range ring on selection of ENGINEER units
Optimized filtering of factories in rallypoint beat function
Selection Range Overlay now only works for single units

See issue #94
Fixed linting