Merge pull request #43 from TatyaniaM/Dev

Dev
Merge pull request #44 from KellyBlack/Dev

Dev
Fixed Milstein2D
Merge pull request #45 from amandagroccia/dev

Fixed the code
Merge pull request #46 from TatyaniaM/Dev

Dev
Merge pull request #47 from amandagroccia/dev

Dev
Merge pull request #51 from CarrieRider/Dev

Dev