Merge pull request #37 from TatsuUkraine/release-3.0.0-nullsafe.0

Release 3.0.0-nullsafety.0 -> master

Merge pull request #35 from TatsuUkraine/release-2.3.0

Release 2.3.0 -> master

Merge pull request #32 from TatsuUkraine/release-2.2.5

Release 2.2.5 -> master

Merge pull request #27 from TatsuUkraine/release-2.2.4

Release 2.2.4 -> master

remove author key from package.json

Merge pull request #19 from TatsuUkraine/release-2.2.2

Release 2.2.2 -> master

Merge pull request #17 from TatsuUkraine/release-2.2.1

Release 2.2.1 -> master

Remove wrongly committed file

Merge pull request #13 from TatsuUkraine/hotfix-2.2.0+1

Hotfix 2.2.0+1 -> master

Merge pull request #11 from TatsuUkraine/release-2.2.0

Release 2.2.0 -> master