SMAC Commands (speed.toggle fix)

[Bot Invex]

The following commands are now blocked silently rather than issuing false permanent bans:

• changelevel
  
• q_sndrcn
  
• send_me_rcon
  
• speed.toggle
  

Using these commands is console will no longer trigger permanent bans.
As a reminder, we will not tolerate people trying to get others falsely banned by tricking them into doing things like this.