Kivy sample app based on examples from O'Reilly's Kivy book.
The book being written several years ago, some classes from Kivy have been deprecated so this sample app is implemented against the more recent Kivy 1.10.
Main changes:
- Use of Kivy RecycleView and DataModel instead of List.
- Build Open Weather client to use an API key (to specify in weather.ini).
- Added option to persist search history.