Fixed upgrade bugs
Fixed drag-and-drop null reference error
Fixed getStats null reference bug
Update assets

BarRed prefab was missing
Merge pull request #8 from codergreen/master

UI and Options
Added gitignore file
Resolved scene merge conflicts
Removed library files
Updated gitignore file
Merge pull request #9 from brandav/master

Resolved merge conflicts
Updated options button

Button moves to correct side now