Update 1.1.0.0

This is a quick update to fix a bug that prevented AI heroes from being able to level up in scenarios, however i also took this opportunity to add another scenario to skirmish mode; Warlords Peak, a new giant scenario with customisable skirmish options. 

Alongside the new scenario and bug fixes this update also comes with a new zooming feature, allowing you to easily zoom in and out using the mouse wheel.