SpawnPoint

The specific changes include:

Team Fortress 2

* Fixed mat_queue_mode crash during level transitions
* Fixed rapid weapon switching allowing Medics to prevent deployed UberCharges from draining
* Improved prediction of Spy's speed changes when disguising
* Fixed Stopwatch panel not updating if level designer ends round by hand instead of letting the gamerules end it
* Optimized particle traces on multi-core machines
* Fixed tracers sometimes firing with the wrong team color
* Fixed rapid-fire weaponry critical hit checks getting out of synch between the server and client
* Fixed map exploits in Gold Rush