The upgradeable indicator icons now show in TTT2's spectator shop preview window. (Thanks Guy-L!)

Changed the UNO Reverse upgrade to be it activates automatically while held

- Weapons being upgraded are no longer removed (you are still forced to holster while upgrading if you can)
- Weapons should now retain their state after being upgraded
- Added UPGRADE:OnPurchase(SWEP) to let weapon upgrades control how weapons behave while they are being upgraded
- The Amaterasu's upgrade has been re-written to ensure it does not activate while being upgraded
- Fixed the upgrades for the Wonder Weapons not giving extra ammo

Added an upgrade for the Golden AK-47:
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=1174728266

Removed centre-screen message for an invalid weapon error

Added an upgrade for the Prop Disguiser 2.0:
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3612689589

One more third person fix...

Fixed third-person view clipping into the player

Fixed third-person clipping through walls

Self-pack-a-punch now gives slightly more speed and health by default