Maescool/Catacomb-Snatch — pull request #690 by LordofMaps (2012-03-03 00:22:16+00:00)
Title: Abstract ShopItem

Changed ShopItem to an abstract class. Each item (Turret, Harvester, Bomb) is now a subclass of ShopItem. This should allow new items to be more easily added in the future and for great flexibility with those
item. For example: each item could place the tool tip at a different location on the screen or have an onTick effect when triggered.

Render is now public (changed from a closed pull request).

Also, the branch name is backwards itemShop should be -> ShopItem. Shouldn't effect anything.