pleroma/test/fixtures/installer/revert_psql.eex

DROP DATABASE IF EXISTS <%= database %>;
DROP USER IF EXISTS <%= username %>;
pleroma installer and config versioning - added DynamicSupervisor, which starts Pleroma deps and restarts config dependent deps - added pleroma installer, where user can configure database credentials and pleroma config. Settings are saved into file and in database - added versioning for in database config. New version is created from changes which are passed to config update/delete endpoint. Every version contains backup with all changes added through update. Versioning supports rollbacks with N steps. With a rollback, all versions that come after the version on which the rollback was made are deleted. 2020-07-16 12:57:27 -04:00			`DROP DATABASE IF EXISTS <%= database %>;`
			`DROP USER IF EXISTS <%= username %>;`