Added missing logic for supporting liege by transferring piety instead of prestige
Fixed intra-faction opinion modifiers not being applied

Different religion claimants can now be pretenders again

Non-faction vassals now join instantly through event
As a result, sending an ultimatum is now done by follow-up event, rather than by decision
In multiplayer, AI will wait up to a month for players to join, players will see which other players have yet to decide either way
Misc fixes, optimisations and enhancements

Trigger appears to be broken

Base game content review
Title history clean-up
Province history fixes
Various other enhancements

-Now *costs* money instead of giving money
-Feast and Summer Fair should both now fire correctly