Ajout de la librairie fluent nhibernate

Mapping des entites de base de donnes
Creation d'un help pour "handle" la session avec fluent nhibernate
Commit for merging
Merge remote-tracking branch 'origin/master' into NHibernate

Conflicts:
	TrackRunner/TrackRunner.Tests/obj/Debug/TrackRunner.Tests.csproj.FileListAbsolute.txt
	TrackRunner/TrackRunner/Web.config
	TrackRunner/TrackRunner/obj/Debug/TrackRunner.csproj.FileListAbsolute.txt