Added IAP functionality
Added text to generator buttons
Added some shit-hot new artwork
Added art to project

Shop labels now get names from UpgradeClicker.cs
Removed OnGUI call
pre-merge
Added enhanced tweening for gift click

Re-added matts code for disabling gift when shop is open (got lost in a
merge somewhere)
Reorganized folder structure

Tilted present to a more satisfying angle
Wrote secure float that swaps values around memory
Hooked up generator UI events
Merge branch 'Phils-Development'