resolvers, orm, migration, schema fixes

queries/shout-by-slug.sql

@@ -0,0 +1,4 @@
+SELECT s.*, a.*, sa.* FROM shout s 
+JOIN shout_author sa ON s.slug = sa.shout 
+JOIN user a ON a.slug = sa.user 
+WHERE sa.slug = a.slug AND a.slug = %s;