New maintenance release.
* "No duplicates" option (Do not download an NZB whose name is already present in the backup folder)
* Option to choose between transposing or removing illegal file name characters
* Restore the "auto-disconnect" option
* Keep Windows awake while downloading/post-processing
* Updated par2 and unrar for OSX
* Make ionice optional and allow parameters for it (Linux)
* Prevent change of download_dir and cache when queues not empty.
* Properly close server connections. (This should prevent servers from complaining about "too many connections" after pauses and empty queues.)
* Removed warning for correct, but empty RSS feeds
* Restore support for rar's with .nnn extensions
* Problem with deleting nameless files from queue
* Improve prevention of duplicates in RSS feeds
* Logging problem in OSX
* Consider semicolon in file names to be illegal and replace/remove it