Entbug Fix

Description: Automatically fixes the entbug when you spawn What is this entbug? Basically its a HL bug where players are unable to see any entities including other players. Sometimes it will just effect a couple of people, sometimes everyone on the server. A way to recreate it is to look through a camera and then changelevel whilst still looking through it. The bug usually persists until the server is restarted. 20/04/09 - 1.1 Fix is done on client_putinserver rather than ResetHUD