Chromaterm

* Minor internal cleanup.

> Upgrade with `pip3 install -U chromaterm`

* Fixed an issue where the `tests` directory was being installed as a module.
* Minor internal cleanup.

> Upgrade with `pip3 install -U chromaterm`

* Improved input detection – in rare circumstances, it was getting highlighted.

> Upgrade with `pip3 install -U chromaterm`

* Fixed a bug where ChromaTerm would freeze if the output pipe is closed early (_i.e._ output is redirected into `head`). This was a regression from v0.10.0. Additional tests added.
* Added `-v`/`--version` option to display the current version of ChromaTerm.
* Improved the default date and time rules to support additional formats.
* Some internal organization and cleanup.

> To regenerate the default rules, rename your config file (if you don't have any custom rules, you can just delete it), then run ChromaTerm. This process is manual to ensure that you are aware of any changes to your config file.

> Upgrade with `pip3 install -U chromaterm`

* Fixed a rare issue where a particular ANSI code is not handled properly. This was happening on older versions of `vi`.

> Upgrade with `pip3 install -U chromaterm`

* Fixed a rare bug that could delay the output from being shown until more data is received.

> Upgrade with `pip3 install -U chromaterm`