fix createTable migration support for non-pg dialects

lib/query-interface.js

@@ -150,6 +150,13 @@ module.exports = (function() {
         });
         });
       });
       });
     } else {
     } else {
+      if (options.schema) {
+        tableName = self.QueryGenerator.addSchema({
+          tableName: tableName,
+          schema: options.schema
+        });
+      }
+      
       attributes = self.QueryGenerator.attributesToSQL(attributes, {
       attributes = self.QueryGenerator.attributesToSQL(attributes, {
         context: 'createTable'
         context: 'createTable'
       });
       });