blacktm/r2d — pull request #7 by akhilstanislavose (2013-04-20 04:44:56+00:00)
Title: draw_square helper not implemented

```ruby
R2D::Helpers.draw_square(10, 30, 50, [255, 255, 100, 150])
#=> undefined method `draw_square' for R2D::Helpers:Class (NoMethodError)