v. 15
- added comments making code more readeble
- id of paragraph showing items must be same as item name in items object if not error can occur
- orgenised code in logic order (as example look at css & html)
- ui.updateitems function made working on every item in items object
- added lemons as new item now four total (including clicks)
- separated buy item functions from game object now are in buy object
- added setup function to game object to clean up window.onload function