v.58. Background syncing and migration to Kotlin
- Fix background syncing on Android 9+.
- Fix downloads (avatars/attachments) with redirects, in which location is relative or absolute path without host and protocol.
- AndStatus fully migrated from Java to Kotlin.
- Fix a Zip Path Traversal Vulnerability.
- Add "Log out" button to the "Account" screen.
- Fix image resizing in a timeline.