Merge branch 'change/license'
Apply agplv3 license to damndb, upkeep
I am relicensing the whole history of damndb and upkeep directories.
Please, consider damndb and upkeep directories to be published under
AGPLv3 since the beginning.
The reason: If you change the database and/or add/change upkeep scripts,
the community should know.
Fix readme upgrade to v0.12.0 section
Merge branch 'add/custom-square-size'
Add upgrade to v0.12.0 section to readme
Merge branch 'instantly-delete-archived-areas'
Update readme with upkeep scripts description
Add server setup introduction
Switch link to mailing list for the list address
Merge branch 'move-to-sr.ht'
Add upgrade to v0.8.0 section
Clear up upgrade/update sytax
Overwrite systemd config files if exists
Include chat to default systemd config file
Remove contribution section, add mailing list
Update readme with damn-deploy