Yle-dl

- Support http://areena.kokeile.yle.fi
- Dropped the support for YleX Areena because the service has been shut down
- --pipe switch dumps the stream to stdout
- Fixed downloading of several HDS streams during one session
- Fixed subtitle file name encoding
- Improved Elävä Arkisto compatibility
- Changed the default path for AdobeHDS.php, override with --adobehds

- Fix -o and --maxbitrate on HDS streams. Maxbitrate is only approximate.
- make install-adobehds downloads and installs AdobeHDS.php

- Support for Areena HDS streams (requires additional packages, see README)

- Fixed --help

- Download best availability quality streams by default
- --maxbitrate controls the maximum bitrate of the stream to download
- --hardsubs downloads a stream with burned-in subtitles if available
- Continue downloading episodes on a series page even if one episode fails

- Fix live radio streams
- Support Svenska Arenan links
- Fix subtitle downloading on series pages
- Load all episodes
- New --showepisodepage switch for printing episode page URLs