[Development] Merge and Integration status report

[Liang Qi]

Integrations

* qt5 dev integration is healthy, last one is yesterday

* qt5 5.11 integration failed from June 9, last integration was done on June 22, but skipped qtbase and qtwayland.
* * Issue: [QTBUG-68773][1] qtwayland build failed - can't find some headers
* * * https://codereview.qt-project.org/#/c/232288/ Robert Griebl has a fix, Oswald please help to review it. Suggest to revert to get 5.11 integrated again, [see the revert][2]

Merges

* qtbase 5.11->dev, the merge is blocked because [QTBUG-68773][1] is not fixed yet.

-- Liang

[1]: https://bugreports.qt.io/browse/QTBUG-68773
[2]: https://codereview.qt-project.org/#/c/233198/