Update of asciinema to 1.4.0
- Dropped distutils fallback in setup.py - setuptools required now
- Dropped official support for Python 3.2
- New --speed option for asciinema play
- Ability to set API token via ASCIINEMA_API_TOKEN env variable
- Improved shutdown on more signals: CHLD, HUP, TERM, QUIT
- Fixed stdin handling during playback via asciinema play