[sources] rewrite the way pyrorql mapping are stored in the database so it can be reused for other sources (eg datafeed+cwxml)
option_group_changed('port', 'main', 'web')
option_group_changed('query-log-file', 'main', 'web')
option_group_changed('profile', 'main', 'web')
option_group_changed('max-post-length', 'main', 'web')