3/8 - Weekly TF2 update

[FadedOasis]

Team Fortress 2
- Added The Nine-Pipe Problem
- Added hud_fastswitch to the Advanced Options dialog
- Fixed a commentary string that referenced the Soldier instead of the Heavy
- Fixed a client crash that could occur when a server used SetCustomModel to change the player model
- Fixed a crash that could occur while trying to get The Argyle Sap achievement
- General improvements to client stability
- Updated the Spirit of Giving so it can have a custom name applied to it
- Updated the map arena_well
__- Updated the skybox
__- Made some miscellaneous material improvements

---

I forgot to post this earlier because I was dealing with a minor emergency. Vultan actually updated the server for me.

[vultanphase]

CREDIT

[Edison W.]

Undocumented:
- Added the Eliminating The Impossible set.
- Added the Private Eye to the Eliminating The Impossible set.
Set effect: Reduces mystery solving time by up to 88% (totally OP)