Changed the prestart time to 30 seconds (was 3 minutes).
Changed the preparatory time to 10 seconds (was 1 minute).
Phases: player list +prestart > warning > race view + preparatory + no more joining > started > finished.
RaceLogic now calls MockRace.initialiseBoats() after the prestart period has finished.
MockRace create a VisualiserBoat when a source ID is allocated.
MockOutput now sends updated XML messages during the race, instead of only at the start.
#story[1188]