My Barcode Wallet

Invalid date

* 6.0
- Follow android design guidelines.
- Change some screen navigation.
- Enhance barcode add/edit ui design.
- Show last backup/restore date.
- Reduce barcode image file.
- Fix some bugs.

* 5.9
- Enhance setting feature. : barcode size, screen brightness.
- Fix some bugs.

* 5.8
- Fix android version 6.0 related bugs.

* 5.7
- Support barcode scanner.
- Optimize image loading.

* 5.6
- Fix some bugs.