first steps for migrate

lib/migrator.js

+module.exports = (function() {
+  var Migrator = function(options) {
+    this.options = Utils._.extend({
+      path: __dirname + '/../migrations',
+      from: null,
+      to: null
+    }, _options || {})
+  }
+
+  Migrator.prototype.migrate = function() {
+
+  }
+
+  // private
+
+  var getLastMigrationId = function() {
+
+  }
+
+  return Migrator
+})()

lib/sequelize.js

@@ -2,6 +2,7 @@ var Utils        = require("./utils")
   , ModelFactory = require("./model-factory")
   , DataTypes    = require('./data-types')
   , ModelManager = require("./model-manager")
+  , Migrator     = require("./migrator")
 
 module.exports = (function() {
   var Sequelize = function(database, username, password, options) {
@@ -47,6 +48,10 @@ module.exports = (function() {
     return defineCall(this, DataTypes)
   }
 
+  Sequelize.prototype.migrate = function(_options) {
+    new Migrator(_options).migrate()
+  }
+
   Sequelize.prototype.query = function(sql, callee, options) {
     options = Utils._.extend(Utils._.clone(this.options.query), options || {})
     options = Utils._.extend(options, {