Merge pull request svenackermann#208 from svenackermann/release/4.3

Release/4.3

Merge pull request svenackermann#193 from svenackermann/release/4.2.2

merge release/4.2.2 to master

Merge pull request svenackermann#191 from svenackermann/develop

manual merge from develop

Merge pull request svenackermann#180 from svenackermann/release/4.0

Merge branch 'release/4.0'