v1.8

- migration:
  - conf/FILEX.ini: UidAttr/MailAttr/UsernameAttr are now in [Attribute] instead of [Ldap]
  - apply conf/update-1.7-1.8.sql

- authentification Shib (avec une seule regle : SHIB)
  doc/migrate-db-to-shib.pl disponible pour migrer de CAS à Shib
- use postMessage-resize-iframe-in-parent.js to have dynamic height in uportal iframe
- implement special trusted upload to be used with curl
  example of use:
  curl -F 'upload=@foo.png' -F 'daykeep=1' -F 'owner=foo@univ.fr' https://filex.univ.fr/filex/trusted-upload
- fix slow upload: writing to IPC cache is too slow to be done every few byte uploads
- corrections orthographiques
- handle multiple ldap servers
- simple fix for mod-perl2 2.0.7