2.0

Breaking changes:

• The backup format changed, see https://github.com/TheLastProject/Catima/wiki/Export-format
• The URL sharing format changed, see https://github.com/TheLastProject/Catima/wiki/Card-sharing-URL-format

Changes:

• Make it possible to enable or disable the flashlight while scanning
• Add UPC-E support
• Support adding a front and back photo to each card
• Support importing password-protected zip files
• Support importing from Stocard (Beta)
• Fix useless whitespace in notes from Fidme import
• Support new Voucher Vault export format
• Fix Floating Action Buttons being behind other UI elements on Android 4
• Fix loyalty card viewer appbar top margin