Messing with Settings (broken)

Need to re work through this.
Switch to Android Studio,  Preferences working (kind of)
Added Licence, among lots of other things...
Removed some debug logging.
Changed name to AndroDip
Adding About dialog parts, not implemented yet.
If pref_span or pref_start are null or default then clear edit fields to show Hint text.
Clicking on Listview hides keyboard.
Adding Start of About Dialog.
Adding Gradle to Git.