TODO
----

* Decrypt 'RepeatedForm' errors
* Show capchas to users if required
* Support simplified runhaskell-style scripting


Version 1.7.1
-------------

* Support setting IDv2 tags for downloaded audio files
* CLI: Fix 'call' command output
* CLI: Fix 'music' command naming


Version 1.6.0
-------------

* Use coroutine-based engine, offering smooth error handling
* Use pipes-http as network backend