Merge pull request LaurentRDC#20 from trbritt/master

Release v5.3.4

Release 5.3.3

Release 5.3.2

Release 5.3.1

Release 5.3.0

Activate SWMR on all platforms

[skip ci] preparation for release 5.2.4

Updated requirements

[skip ci] relaxed bounds on qdarkstyle

Updated requirements for npstreams

Former-commit-id: 54d0108