* Fix release build problems
- multiple coroutine versions (ProGuard did not like it)
- crashes due to obfuscation of specific coroutine code
* Fix downloading file if the cached version was used
* Show download progress in percent
* Change reconnect issues warning
* Increase timeout per pulled block
* Replace "other syncthing instance running" dialog
The dialog is replaced by a message which is shown at the bottom of the introduction screen and the folder list.
This fixes https://github.com/syncthing/syncthing-lite/issues/62