1.3x patch, do we want one?

[LivingTarget]

Well I suppose the answer will be yes, but in anycase i\'d better check in before doing anything.

Suggested Fixes:
# (Testing) Have a look at fixing sliding while prone bug, happens a lot on marketgarden.
# (Done) Reduce spawntimes with lower playercount
# (Done) Remove performance manager
# (Done) Possibly fix grenade sound for listen server
# (Done) Tweak weapon effects slightly, autos + shellcasing + hit effects = slowdown.
# (Done) Implement the patch against the server browser crash
# (Done) Enigma/Documents respawn immediatly if it has been destroyed

Additional stuff:
# - Deleted - Officer idea, impossible without mayor rework. Both teams spawn at the same time atm.
# - Deleted - Medic, silly forgot I actually implemented a method already. However only available through TTRArena mutator.
# (Tweaking stage) Replace \"(axis)\" and \"(allied)\" in speech with flag icons.