define method + constructor + data-type mixin

lib/sequelize/Sequelize.js

+var Utils = require("./utils")
+  , Model = require("./model")
+
+var Sequelize = module.exports = function(database, username, password, options) {
+  options = options || {}
+
+  var ModelManager = require("./model-manager")
+  this.modelManager = new ModelManager()
+  this.options = Utils._.reject(options, function(value, key) { return ["host", "port", "disableTableNameModification"].indexOf(key) > -1 })
+  this.config = {
+    database: database,
+    username: username,
+    password: (( (["", null, false].indexOf(password) > -1) || (typeof password == 'undefined')) ? null : password),
+    host    : options.host || 'localhost',
+    port    : options.port || 3306
+  }
+}
+
+var instanceMethods = {
+  define: function(modelName, attributes, options) {
+    options = options || {}
+    
+    var model = this.modelManager.addModel(new Model(modelName, attributes, options))
+    
+    return model
+  }
+}
+
+
+Utils._.map(require('./data-types'), function(sql, accessor) { Sequelize[accessor] = sql})
+Utils._.map(instanceMethods, function(fct, name) { Sequelize.prototype[name] = fct})
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