Fix crash of RC4 encrypted password notice.

More fix to #516

stats page generates spurious warnings in stderr (#700)

web_tt2/info.tt2 generates some noise in stderr

Drop support for Perl 5.8.x (#620)

task_manager.pl dies when the list no longer exist (#681)

[bug] task_manager.pl dies when the list no longer exist when some command such as sync_include was executed.
Fixed by checking if target list exists.

Fix tidying of src/lib/Sympa/List.pm

Additional fix to #516

mtime of file like .last_change.admin was not updated

Improving data sources

DMARC protection: "p" tag is not applied to subdomains #654

Add « report as spam » option when deleting archives

Make it clear on web interface that a list is being moderated

Fix error in subindex.tt2: subscribtions reject button does not work

[bug] mtime for cache file like .last_change.admin on some filesystems like NFS with Linux was not updated.  Fixed by updating it explicitly with utime().

Support Test::Compile 2.0.0