added ot first/second half game states
remove state_ prefix from m_iGameState enums
added live status bool

used to prevent accidental team scoring if a team were to complete the
objective in rare cases before lo3 gets run..

mostly for pregame/halftime, where if the last person readys up and then
the entire team dies before the first sv_restartround happens, it will
no longer count as a regular pug round
move enabling of round end to cgame_lo3
slight tweak to lo3 function
added initial votemap menu

added minplayers cvar
added votemap menu callback

used to disable current map option when voting for map

added votemap results hudmessage, still need to tweak it to order the
list by number of votes