title: Wordpress Gravity Forms e-mail notification not sending checkbox values
body: <p>I want to send e-mail notification to user when form is  submitted. All input field values are sent, but not checkbox values. To get values from input boxes, I use {Field label: ID} , but for checkboxes it sends an empty value via e-mail.</p>
  
  <p>I have 4 checkboxes and the field is called Lisad with ID 11. Shouldn't I be useing {Lisad:11} to get the value and send it via e-mail?</p>