- Session parameters "cas_server" and "checked_cas" were replaced with
    "cas_id" and "passed_cas".

  - According to the proposal on #90, "intern" level shouldn't be used for
    malformed input by users/clients: "user" level should be used.

WWSympa: Certificate authentication: Simplify the method to get email addresses in X.509 certificates.
Crypt::OpenSSL::X509 1.909 or later is required.

Crypt::OpenSSL::X509 1.909 or later is required.

Archive::Zip is now discouraged, because it is memory-consuming:
Use of Archive::Zip::SimpleZip/SimpleUnzip is encouraged.
However, for some environments not providing Archive::Zip::Simple*,
Archive::Zip may be used as workaround.

  - Added not_before and not_after keys to hold available versions.
  - Simplified Conf.pm a bit.
  - Parameter "tracking" in sympa.conf/robot.conf will be forced renaming.

  - Add Sympa::DataSource::is_external().
  - use Sympa::List::get_exclusion(). As a side work
    Sympa::List::is_member_excluded() was deprecated.

Fix: Persistency (automatic reconnect) feature of Sympa::Database should be disabled during transaction.

Injected on commit 5b5fd551 and affects 6.2.57b.1 to 6.2.64.