Removed french characters from few file names

Characters with accents made impossible to build the site locally (in
Windows).

Also few corrections to links between author and session files.
Two missing sessions from MS track

from nicolas-clerc and maarten-balliauw

These 2 files were ignored because .gitignore contained "*azure*". Fixed
and added files back.
Merge pull request #12 from vcaraulean/fixes/program-1

Removed french characters from few file names
Merge pull request #13 from vcaraulean/fixes/2-missing-sessions-in-ms

Two missing sessions from MS track