Don't translate response to /rnd command

Add error message for /callvote map if no maps are available

Hide /watch command if OFFICIAL_SERVER is not set

Properly scale Start button size in pagenetgame just like in pagemultiplayer

Add a few helpful error messages from server when kicking failed

GameServer: Refactor fake nick names into Consts

Fix some formatting problems with /me

Tweak response messages to /super_power and /registered_only

Fix translatability of "unknown command" server message

Make frontend translate server messages properly

Use plain text mode in video description label to avoid HTML trouble

Backed out changeset 076b7d23fab8. Well, the commit in question was needed after all ...

Fix critical failure to cleanup teams list after rejoining game after a force-quit. Fixes bug #597

Backed out changeset 6c0cf6b9eff8. Scripters should be prepared for nil and pretending the gear exists would cause more pain

Clean up more visual gears stuff in scripts - Make vgears non-critical if possible - Add nil checks where needed - Fix related bugs - Remove doomed attempts to call FollowGear on vgears