Ultimate Deathmatch v1.9

Fixes

• Fix config strings
• Fix and improve weapon silencing
• Fix checking the distance between alive player locations and a potential spawn point
• Fix time penalty string for exceeding team changes
• Fix setting the client value for lastinv depending on the player's random_mode state: pressing the corresponding key, e.g. Q, now works as expected

Changes

• Use a much more convenient method for menu callbacks
• Block hostage positioning console messages
• Use a different thread to move the player to their next spawn location