Ability to change the default url text

[Dan Gold]

When you supply a URL, the text shows up in the dialog as "View". It's be cool to have an extra param in the data like, url_text to be able to customize the popup.

So like:

- title: Place Name
  url: http://www.place.net
  url_text: View place name
  latitude: 6.206731
  longitude: -75.5677747

[Anatoliy Yastreb]

Implemented in v2.3.0

[Dan Gold]

Yay it works! 🎉