linting fix & test fail fixes

Author: Nishchit14

lib/transformer.js

@@ -48,17 +48,21 @@ module.exports = {
       return new Sequelize(config.database, config.username, config.password, config)
     }
   },
-  
+
   /**
 	 * Pick only SQL stores from app config
 	 * @param {Object} stores
 	 * @return {Object}
 	 */
-	pickStores (stores) {
-		return _.pickBy(stores, (_store, name) => {
-			return (_store.dialect && _.isString(_store.dialect))
-		})
-	},
+  pickStores (stores) {
+    return _.pickBy(stores, (_store, name) => {
+      return ((_store.dialect && _.isString(_store.dialect))
+        || _.startsWith(_store.uri, 'mysql://')
+        || _.startsWith(_store.uri, 'mysql://')
+        || _.startsWith(_store.uri, 'postgresql://')
+        || _.startsWith(_store.uri, 'sqlite://'))
+    })
+  },
 
   /**
    * Transform the Trails.js "stores" config into a Sequelize object