Buildbot 2.10.5, 3.0.3 and 3.1.0

[Povilas Kanapickas]

Buildbot 2.10.5, 3.0.3 and 3.1.0 have been released!

See more details in the notes for these releases:

https://buildbot.readthedocs.io/en/v2.10.5/relnotes/index.html

https://buildbot.readthedocs.io/en/v3.0.3/relnotes/index.html

https://buildbot.readthedocs.io/en/v3.1.0/relnotes/index.html

No further releases of 2.10.x and 3.0.x are planned unless issues
affecting migration to Buildbot 3.x are discovered.

Regards,
Povilas