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Refs #1076: member expiration date calculation fix. The calc functionality was separate from Members controller to a new Expiration calc service. The new service comes with unit tests which tests the #1076. Additionally this patch comes with some fixes and improvements in already existing unit and integration tests.

Upgrade PHPAX-RS to 0.1.1

Prepare release 1.1.21

Fixes #1069: user with watcher can be deleted

Fixes #1070: RB importer supported on PHP 5.6 >=

Ref #1068: add support connecting to encrypted SMTP servers.

Refs #1065: Fix members export to CSV when speed class filtered.

Prepare release 1.1.20

Fixes removed condition.

Conflicts:
application/models/email_queue.php

Refs #1053: Default sort in emails set to ID which is indexed (previously by access_time), some small improvements in related queries but filters are still very slow.

Conflicts:
application/models/email_queue.php