- Fixed empty ActionStack "interrupt" messages
- If no attackers are declared, go straight to Combat end phase
- Once First strike damage is declared, attacking player needs to "actively" request a next phase event to go to the next damage step
- Second Damage step is called "Combat Damage (2)"
- UserRequestNextPhase is to be used knowing that it might not succeed
- Step change for GuiCombat is now computed at GameObserver::nextGamePhase
Note: Combat damage to creatures is not assigned when AI attacks. As this seems to be a problem with the previous SVN version, I4m still committing this change
