Remove AvailableTeams(), instead store team number in existing teamplay global
Move code adding score as int to a dedicated function that can be used by other game modes
Merge branch 'master' into terencehill/less_entities
Some more defs.qh cleanup, update gameplay hash (again)
Spawn g_team_entities only if teamplay is enabled
GameRules: encapsulate scoring
GameRules: encapsulate player 'VIP' status
GameRules: make `GameRules_teams(true)` imply `have_team_spawns = -1`
Refactor game rules