Various fixes to make tests work

See merge request open-source/symbiosis!87

Set the correct sieve location setting in the dict proxy

See merge request open-source/symbiosis!84

Fix typo in symbiosis-password-test

See merge request open-source/symbiosis!86

Fixed up the failing method call and test

See merge request open-source/symbiosis!85

This also updates the defaults configuration, and adds in helpful
comments :)

Move SSL hooks to usr/share out of etc, because they're not configuration files 8-)

See merge request open-source/symbiosis!83

# Conflicts:
#   email/debian/changelog
#   email/debian/maintscript
#   ftpd/debian/changelog
#   httpd/debian/changelog

Stretch skel

See merge request open-source/symbiosis!81

Stretch fix password test

See merge request open-source/symbiosis!80

Merge branch 'jessie' into merge-jessie-to-stretch

See merge request open-source/symbiosis!79

Set 'keep_environment' variable in Exim configuration

See merge request open-source/symbiosis!64

Add admin user to www-data group

See merge request open-source/symbiosis!62

# Conflicts:
#   common/debian/changelog

Fix stats postinst

See merge request open-source/symbiosis!77

# Conflicts:
#   httpd/debian/changelog

Remove -s from vhost templates to improve golang logger performance

See merge request open-source/symbiosis!74

Fix deprecated 'File.exists?' warning

See merge request open-source/symbiosis!70

Update FTPD changelog, noting FTP TLS commit revert

See merge request open-source/symbiosis!73