Merge pull request #1 from KellyBlack/Dev

Added a comment on the Poisson example
Merge pull request #1 from TatyaniaM/Dev

Dev
Merge pull request #2 from CarrieRider/Dev

Dev
Analysis of Random Walks
changed color to 4
Merge pull request #2 from TatyaniaM/Dev

Dev
Ito Int. data and stats from Higham's stint.m file
Merge pull request #2 from CarrieRider/Dev

Dev