use path.resolve instead of url.resolve for local file path

lib/sequelize.js

 var url               = require("url")
 var url               = require("url")
+  , Path              = require("path")
   , Utils             = require("./utils")
   , Utils             = require("./utils")
   , DAOFactory        = require("./dao-factory")
   , DAOFactory        = require("./dao-factory")
   , DataTypes         = require('./data-types')
   , DataTypes         = require('./data-types')
@@ -219,7 +220,7 @@ module.exports = (function() {
     if (url.parse(path).pathname.indexOf('/') !== 0) {
     if (url.parse(path).pathname.indexOf('/') !== 0) {
       // make path relative to the caller
       // make path relative to the caller
       var callerFilename = Utils.stack()[1].getFileName();
       var callerFilename = Utils.stack()[1].getFileName();
-      path = url.resolve(callerFilename, path);
+      path = Path.resolve(callerFilename, path);
     }
     }
 
 
     if (!this.importCache[path]) {
     if (!this.importCache[path]) {