Play around with the columns
Remove references to FG in rake tasks
Reduce number of USDA foods to consider
Remove spec/ folder
Wrap the Simplex library in a class so we can replace it
Replace simplex gem with lpsolve gem
Optimize recipe generator for large numbers of ingredients

Now it takes 10 seconds to generate a recipe for 1500 ingredients. This
was especially designed for the optimal recipe generator that is based
on USDA ingredients.