[ANNOUNCE] libgpiod v0.3

[Bartosz Golaszewski]

libgpiod v0.3 has been released and is available from github[1].

This will be the last release in the 0.x series as I now want to
introduce backwards-incompatible changes in the API that will fix
certain bad design issues.

New features:
- gpiomon can now watch multiple lines at the same time and supports custom
  output formats which can be specified using the --format argument
- testing framework can now test external programs: test cases for gpio-tools
  have been added

Improvements:
- improve error messages
- improve README examples
- configure script improvements

Bug fixes:
- use correct UAPI flags when requesting line events

Best regards,
Bartosz Golaszewski

[1] https://github.com/brgl/libgpiod/releases/tag/v0.3