Change armor/attack bonus data structure

[edman3d]

Instead of current:

+2 vs Eagle Warrior;+2 vs Standard Buildings

Change to something like

[{amount: 2, against: 'Eagle Warrior'}, {amount: 2, against: 'Standard Buildings'}]

That way I can display it in a much nicer way using components and stuff. Also makes it easier to update via a UI form

[edman3d]

done