Main/Console+Machine+Session+Snapshot: move the save state and snapshot related methods from IConsole to IMachine, with lots of unavoidable code restructuring and cleanup. Also define two new machine states (so that the "Saving" one is specifically for saving state now) which requires more changes everywhere Frontends: necessary adjustments doc/SDK: document the changes
Autostart: More updates for the Windows service
VBoxAutostart: Attempt on fixing OSE