.title usage on iOS (8.2+)

[aral]

The readme states that iOS does not use the title property. However, according to the Local and Remote Notification Programming Guide, title (part of the alert dictionary) is:

“A short string describing the purpose of the notification. Apple Watch displays this string as part of the notification interface. This string is displayed only briefly and should be crafted so that it can be understood quickly. This key was added in iOS 8.2.”

Is this a separate usage or should the pushd docs be updated?

[rs]

We should update the doc.