[Development] Merge and Integration status report

[Liang Qi]

Integrations

* qt5 dev integration failed from June 18
* * Issue: [QTBUG-68848][1] tst_QQmlDebugJS fails too often in CI, perhaps a duplicate of [QTBUG-68741][2], the issue is there about two weeks, more talks in [previous report][4]

* qt5 5.11 integration failed from June 9
* * Issue: [QTBUG-68773][3] 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.

Merges

* qtbase 5.11->dev, the merge is blocked because [QTBUG-68773][3] is not fixed yet.

-- Liang

[1]: https://bugreports.qt.io/browse/QTBUG-68666
[2]: https://bugreports.qt.io/browse/QTBUG-68741
[3]: https://bugreports.qt.io/browse/QTBUG-68773
[4]: http://lists.qt-project.org/pipermail/development/2018-June/032893.html