Fixed several corruption-causing bugs
Moved Zeus fields to other classes

Zeus.projectileList to SavedGameState
Zeus.epsilon to SavedGameState.nu
Zeus.zeta to SavedGameState.xi
Zeus.autofire to SavedGameState

Zeus.eta to RebelFlagshipState.alpha
Zeus.iota to RebelFlagshipState.gamma
Zeus.kappa to RebelFlagshipState.delta