[knex] Fix MigratorConfig according to docs.

As described in http://knexjs.org/#Migrations-API,
there is no `database` config parameter and there is
`disableTransaction` parameter

knex/knex-tests.ts

@@ -619,7 +619,12 @@ knex.select('*')
 //
 // Migrations
 //
-var config = { };
+var config = {
+  directory: "./migrations",
+  extension: "js",
+  tableName: "knex_migrations",
+  disableTransactions: false
+};
 knex.migrate.make(name, config);
 knex.migrate.make(name);
 

knex/knex.d.ts

@@ -532,10 +532,10 @@ declare module "knex" {
     }
 
     interface MigratorConfig {
-      database?: string;
       directory?: string;
       extension?: string;
       tableName?: string;
+      disableTransactions?: boolean;
     }
 
     interface Migrator {