* Enhanced the security of the app by using v3 & v4 apk signing, exporting only necessary activities as well as changing the launchMode to singleTop.
* Offline Reading no longer generates local notifications when it checks to see if any new content is available.
* Fixed a crash that could happen if the app configuration is invalid and now instead shows an error message.
* Fixed an issue where content without a thumbnail would cause Offline Reading to not update correctly.