I'm currently working with CakeExcel and noticed that my formulas are showing zero as result. After [reading this](http://stackoverflow.com/a/23659249/407456) I've decided to try it by myself and got surprised to see that [it's forced to false](https://github.com/dakota/CakeExcel/blob/master/src/View/ExcelView.php#L110). Why is this forced to false? Can we consider setting it to true? Or, maybe better, add some way to configure it...? Thanks in advance