Merge pull request #33 from KellyBlack/Dev

Added an example of generating random numbers from a normal distribution in a c program.
made formulas for the confidence interval
Unfixed bifurcation and Milstein2D
Merge pull request #39 from CarrieRider/Dev

Dev
added some comments
added more comments to the code
Merge pull request #32 from TatyaniaM/Dev

Dev