Use first comment to set description, not description field

When a user fills out the Zendesk form and submits, a new ticket is created in Zendesk by submitting a JSON package to zendesk.com. Currently the bug's description is sent along in the "description" field.

However, the description field is not the right place, surprisingly. The right format for the JSON is

{
  "ticket": {
    "comment": {
      "value": "This is the ticket description"
    },
    "requester": {
      "name": "Customer",
      "email": "customer@domain.com"
    }
  }
}

Change the format of the ticket submitted so that it conforms with Zendesk standard.

See also https://support.zendesk.com/entries/38297038-Description-field-not-chang....