Use the session folder instead of the parent directory
Force to choose a session folder before creating an asset
Re-add import/export to menu and correct archive managers (both)
Relative path for the asset file in Asset
Relative path for the report files in Report
Ask for the session folder at start up
Merge conflicts from correlation fixed
Merge pull request #68 from pchaigno/session-folder

Dossier de session pour la sauvegarde