Bugfix: OcclusionGroup - handle case when player reconnects and reclaims his sleeper - Added unit tests - Reconnect(4), KillSleeper(4), KillSleeperAndReconnect(8) and DieAndRespawn(4) Tests: unit tests + 2p on Craggy with p2 reconnecting near p1. used OcclusionValidateGroups (need a minor fix)