version `0.2.4`

See #341, release log:

• 543956a by @h1alexbel: deprecation
• bcf7647 by @h1alexbel: #339
• addd0ab by @rultor: Merge branch '__rultor'
• 9091788 by @h1alexbel: #80
• b54b314 by @h1alexbel: org url

Released by Rultor 1.75.0, see build log