remove property check in DAO.prototype.setDataValue - it is not correct and caus…

…es an infinite loop when setting a data value for a field that is as yet unset (via a property setter that has the same name as the original property)

lib/dao.js

@@ -87,10 +87,7 @@ module.exports = (function() {
   }
 
   DAO.prototype.setDataValue = function(name, value) {
-    if (this.dataValues && this.dataValues.hasOwnProperty(name))
-      this.dataValues[name] = value
-    else
-      this[name]            = value
+    this.dataValues[name] = value
   }
 
   // if an array with field names is passed to save()