Asciinema

This major release brings many new features, improvements and bugfixes. The most
notable ones:

* new [asciicast v2 file format](doc/asciicast-v2.md)
* recording and playback of arbitrarily long session with minimal memory usage
* ability to live-stream via UNIX pipe: `asciinema rec unix.pipe` + `asciinema play unix.pipe` in second terminal tab/window
* optional stdin recording (`asciinema rec --stdin`)
* appending to existing recording (`asciinema rec --append <filename>`)
* raw recording mode, storing only stdout bytes (`asciinema rec --raw <filename>`)
* environment variable white-listing (`asciinema rec --env="VAR1,VAR2..."`)
* toggling pause in `asciinema play` by <kbd>Space</kbd>
* stepping through a recording one frame at a time with <kbd>.</kbd> (when playback paused)
* new `asciinema cat <filename>` command to dump full output of the recording
* playback from new IPFS URL scheme: `dweb:/ipfs/` (replaces `fs:/`)
* lots of other bugfixes and improvements
* dropped official support for Python 3.3 (although it still works on 3.3)

* Dropped distutils fallback in setup.py - setuptools required now (thanks Jakub "jakubjedelsky" Jedelsky!)
* Dropped official support for Python 3.2 (although it still works on 3.2)
* New `--speed` option for `asciinema play` (thanks Bastiaan "bastiaanb" Bakker!)
* Ability to set API token via `ASCIINEMA_API_TOKEN` env variable (thanks Samantha "samdmarshall" Marshall!)
* Improved shutdown on more signals: CHLD, HUP, TERM, QUIT (thanks Richard "typerlc"!)
* Fixed stdin handling during playback via `asciinema play`

This release brings back the original Python implementation of asciinema. It's
based on 0.9.8 codebase and adds all features and bug fixes that have been
implemented in asciinema's Go version between 0.9.8 and 1.2.0.

Other notable changes:

* Zero dependencies! (other than Python 3)
* Fixed crash when resizing terminal window during recording (167)
* Fixed upload from IPv6 hosts (94)
* Improved UTF-8 charset detection (160)
* `-q/--quiet` option can be saved in config file now
* Final "logout" (produced by csh) is now removed from recorded stdout
* `rec` command now tries to write to target path before starting recording

* Added playback from stdin: `cat demo.json | asciinema play -`
* Added playback from IPFS: `asciinema play ipfs:/ipfs/QmcdXYJp6e4zNuimuGeWPwNMHQdxuqWmKx7NhZofQ1nw2V`
* Added playback from asciicast page URL: `asciinema play https://asciinema.org/a/22124`
* `-q/--quiet` option added to `rec` command
* Fixed handling of partial UTF-8 sequences in recorded stdout
* Final "exit" is now removed from recorded stdout
* Longer operations like uploading/downloading show "spinner"

* Fixed putting terminal in raw mode (fixes ctrl-o in nano)

* `--max-wait` option is now also available for `play` command
* Added support for compilation on FreeBSD
* Improved locale/charset detection
* Improved upload error messages
* New config file location (with backwards compatibility)