WebDAV: Properly check for network and parsing errors
requested to merge 374-bug-sync-during-difficult-network-conditions-might-accidentally-delete-items-from-a-library into master
We now properly check if the network replies have an error set and - if so - don't use any of the data that might have been (partially) loaded. Also, we now properly check the WebDAV list replies. This should prevent the app from accidentally deleting files while running in difficult network conditions.
Closes #374 (closed)