- Move gdwadmin on the filestorage.
- Removes the update of the columns that are now defined in the
  link_hebergement_metadata and metadata tables.
- Uses the hebergement view instead of the table to have access to the
  metadata informations.
- Removes the references to the heb_tarif_charge column.
- Removes the references to the column heb_chmbre_divers.
- Removes the references to the heb_chmbre_tarif column.
- Removes the references to the heb_animal_taxe column.
- Adds the TODO file