*Updates to Nextcloud 18.0.0 (we were 3 major versions behind)
*Updates calendar app to calendar v2.0.1 (we were 5 months out of date)
*Updates contacts app to contacts v3.1.8 (we were 4 months out of date)
Installs Nextcloud Talk (more info: https://nextcloud.com/talk/ and https://github.com/nextcloud/spreed ) because it is a very important app to have, because video chatting is very common, if we have a private email server, calendar, and contacts, why shouldn't we have a private chatting software?
*Adds clarity as to *which* hashing algorithm is used to verify the file downloads
*Adds installation step for those that skip last installation
*Enables Nextcloud Talk (also called "spreed")
Because Mailman reformats headers it breaks DKIM signatures. SPF also does
not apply in mailing lists. This together causes DMARC to fail and mark the
email as invalid. This fixes DKIM signatures for Mailman-based mailing lists
and makes sure DMARC test is passed.
A minimal Ubuntu server installation might not have universe enabled by
default. By adding it, we ensure we can install packages only available
in universe, such as python3-pip
Merges #1650.
* Download and verify Nextcloud download before deleting old install directory
* Changed install logic to look at config.php and not version.php for database version number. When restoring from a backup, config.php in STORAGE_ROOT will hold the Nextcloud version that corresponds to the user's database and version.php in /usr/local won't even exist, so we were missing Nextcloud migration steps. In other cases they should be the same.
* Update to Nextcloud 15.0.7, Contacts to 3.1.1, and Calendar to 1.6.5
* Enabled localhost-only insecure IMAP login for localhost Nextcloud auth
* Add package php-imagick and BigInt conversion
* added support for /cloud/oc[sm]-provider/ endpoint
* Upgraded Nextcloud from 13.0.6 to 14.0.6.
* Upgraded Contacts from 2.1.5 to 2.1.8.
* Upgraded Calendar from 1.6.1 to 1.6.4.
* Cleanup unsupported version upgrades: Since an upgrade to v0.30 is mandatory before moving upward, I removed the checks for Nextcloud prior version 12.
* Fix the storage root path.
* Add missing indices. Thx @yodax for your feedback.
