Release development version 3.5.2.dev56

Release development version 3.5.2.dev39

Release development version 3.5.2.dev35

Release development version 3.5.2.dev29

Release development version 3.5.2.dev17

Release development version 3.5.2.dev13

Release development version 3.5.2.dev6

Merge pull request #2218 from LaviniaBaumstark/release-candidate-3p5p2

remind release 3.5.2

Release development version 3.5.2.dev2

Release development version 3.5.1.dev393