Merge pull request #8 from TatyaniaM/Dev

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Merge pull request #9 from TatyaniaM/Dev

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Merge pull request #14 from CarrieRider/Dev

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Introduction
added bpath movie file
Merge pull request #9 from CarrieRider/Dev

Dev
Merge pull request #10 from TatyaniaM/Dev

Merge pull request #14 from CarrieRider/Dev
Added a copy of the original matlab files in the Higham paper.
Added code to include a movie in the brownian motion latex file.
Changed the movie format to avi
Added more path colours to the brownian motion example.
Merge pull request #10 from KellyBlack/Dev

Added higham's files and added code for a movie
Merge pull request #16 from KellyBlack/Dev

Added higham's files and added code for a movie
Merge pull request #15 from CarrieRider/Dev

added bpath movie file
updated slides
Merge pull request #11 from TatyaniaM/Dev

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