Review cancel download for keep_in_sync files. Clear etag for parent folder, to force the download when refreshing the folder
Review the behaviour when delete locally a keep_in_sync_file.Clear etag to force to download keep_in_sync files
Changes from comments in PR#535. Remove some imports in NotificationBuilderWithProgressBar
Merge pull request #535 from owncloud/fix_keep_up_to_date_when_sync

Fixed update of kept-in-sync files when full account is refreshed