This commit adds the following:
 - Admin ban now allow bans the name along with the IP. This is useful in the case where someone tries to come back when he changed ip with the same name. This also fixes an issue where only one single ip could be ban per name.
 - Admin unban. Just incase a mistake happened by the admins.
 - Admin micon to enable someone's mic that was previously micoff'd. (Useful for people that reformed and won't mic spam anymore)
 - Admin spec. Switches someone to spec. Could be useful in pug.