1. Added a FileChooserDialog, which is like FolderChooserDialog but allows file selection. See the README and sample project for usage.
2. You can now use icons with the Material preferences.
3. Added app:useStockLayout option for the preference classes. Setting it to true will override using the custom Material preference layout provided by this library.
4. Re-enabled JavaDoc generation.
5. Other bug fixes and improvements, including a few for the preference classes.