adding slime class
adding Fire and Acid slimes
adding immunities to fire and acid slimes
updating grid icon to use transparency
adding support for animating characters and features
merging daniel/master
adding slime trails in a more elegant way
adding character presenter to clean up HUD markup
fixing click on HUD image to activate character
adding remaining actions to character HUD
much better HUD
Adding LeadFoot passive and Demolish ability
Merge pull request #34 from mdiebolt/master

Adding different slime varieties