Updated server description on GameTracker and GS4U (Recommended to access server description on GS4U since GameTracker is very unstable these days).

• Updated information about how to block the update notification and prevent TeamSpeak 3 to update itself for the latest version.

Updated DNS for Ventrilo and the Quake Wars server (Duckdns will no longer be used)

• Ventrilo DNS: lrvent.retrospection.xn--q9jyb4c (Also available in the "Ventrilo Files" channel)
• ETQW DNS server: etqw.retrospection.xn--q9jyb4c

Adjusted "ETQW player" server group: To join the ETQW channel you need to have this server group first, both to join or see the channel description or access ETQW related channels on TeamSpeak 3.

Bug fixes for "Ventrilo User" server group and "TS6 User" server group.