IdentityPython/pyFF

- when update:
  - load:
    - https://mds.edugain.org
- when request:
  - select:
  - pipe:
    - when accept application/samlmetadata+xml application/xml:
      - first
      - finalize:
          cacheDuration: PT12H
          validUntil: P10D
      - sign:
          key: sign.key
          cert: sign.crt
      - emit application/samlmetadata+xml
      - break
    - when accept application/json:
      - discojson
      - emit application/json
      - break