Proof reading the tutorial of iii and fixing a few typos

git-svn-id: https://insight.labri.fr/svn/trunk@901 00316523-1ed1-4fdc-9313-76483a3f41dc
Finishing the proof reading of the tutorial

git-svn-id: https://insight.labri.fr/svn/trunk@902 00316523-1ed1-4fdc-9313-76483a3f41dc
Added an Acknowledgements section to the tutorial

git-svn-id: https://insight.labri.fr/svn/trunk@903 00316523-1ed1-4fdc-9313-76483a3f41dc
Polishing the acknowledgements section

git-svn-id: https://insight.labri.fr/svn/trunk@904 00316523-1ed1-4fdc-9313-76483a3f41dc