Windows Fixes:
- fixed Doppler effect
- changed protocol from 66 to 67
- fixed simple developer 1 cvar cheat hack
- changed a few warnings to developer warnings
- rcon commands no longer fragment, sent buffered to the rcon client
- fixed connection issues / broken userinfo
- only printing R_AddPolyToScene warnings with +set developer 1
- various dedicated server issues fixed

Linux only:
- fixed sound crash, going around memset bug in glibc i586/i686