State of Plasma with Qt 5.6

[Aleix Pol]

Hi,
For reasons [1] I've had to change to Qt 5.6 today. I wanted to make
sure everyone knows what's the status, hence this e-mail.

I've been experiencing a small issue [2] on start, so we can't expect
Plasma 5.4.0 to work with it, probably worth backporting the change so
5.4.1 can use Qt 5.6.

On one of my users with a vanilla configuration it just works (yay),
on the other one I'm getting a crash [3]. I'll follow up on the issue
and report back.

Regards,
Aleix


[1] https://codereview.qt-project.org/#/c/124783/
[2] https://git.reviewboard.kde.org/r/125023/
[3] https://bugreports.qt.io/browse/QTBUG-48056