gmod_game: Moved version number to ttt:vXX tag rather than ha..

Revision 943
Moved version number to ttt:vXX tag rather than having it in the server’s game description. (eg. ttt:v25)
Added ttt:language_[language name] tag for servers running a non-english default language. (eg. ttt:language_french)
TTT specific tags are now removed when a Fretta gamemode vote starts.
Changed Files:
[ul]
[li]garrysmod/gamemodes/terrortown/gamemode/fretta_must_die.lua[/li][li]garrysmod/gamemodes/terrortown/gamemode/init.lua[/li][/ul]
Committed By Stefan van der Meer