LogsDownloaderWorker: Test removing unused basePath variable (legacy from HTTP downloader).
LogsDownloaderWorker: Code and comments cleanup.
LogsDownloaderWorker: Code and comments cleanup.
LogsDownloaderWorker: Code and comments cleanup.
LogsDownloaderWorker/DownloaderPanel: Little cleanup.
LogsDownloaderWorker/FtpDownloader: Comment out not used methods.