Catt

Fix
* Misc improvements/fixes for final Python 2 release (69) (cbb4cc984d06fd128e9af66b53abeaa85df9429c)

Fix
* Make status command more useful (65) (97427902b058867426c3f9aece851791730294b6)
* Proper fix for add action (64) (9fee4e5401a15fe5c8172497ecccb8cd3e763ca7)
* Make info command more useful (63) (c6d06a69cf4880a117db1d2319706cad31b7c02c)

Feature
-------
- Make status use regular time descriptions (32)
- Add argument to volumeupdown (29)
- Add scanning for local Chromecasts


Fix
---
- Further improve play_media (31)
- Rework CastController.init
- Do state_check in CastController.init
- Make check_state private
- Correct timeout parameter type
- Make catt work with pychromecast 0.8.0

Fix
* Handle playlists better (fixes 24)