Postpone connecting to Postgres until the first run() so that the compile test doesn't attempt to connect to the database
Remove "mc-backup.sh" and "mc-restore.sh" scripts because now that Media Cloud is able to write raw downloads directly to the database, there's no need to have such scripts
Remove unused Bash include
Create databases after a successful compile test because the compile test should pass without a database being present and this is how we can ensure that
Add note about enclosing "mediawords_query_config.pl" XPath parameter in quotes
Add note as to which database is the "production" one
Make "create_default_db_user_and_databases.sh" and "purge_mediacloud_databases.sh" read database credentials from mediawords.yml so that the user can configure the names of databases that are about to be created / dropped
Make Gearman’s PostgreSQL database used for storing queue configurable from mediawords.yml