Raising Qt requirement to Qt 5.4

[Albert Astals Cid]

El dimecres, 16 de març de 2016, a les 13:13:36 CET, Martin Graesslin va 
escriure:
> Hi all,
> 
> with todays release of Qt 5.6 I suggest that we raise the minimum Qt version
> requirement to 5.4. This would mean the latest three releases are
> supported.
> 
> The important new features in Qt 5.4 in my opinion for frameworks
> development are:
> * QSignalSpy(const QObject *object, PointerToMemberFunction signal)
> * Q_LOGGING_CATEGORY(name, string, msgType)
> 
> Which are already used in many frameworks and currently ifdefed.
> 
> Opinions?

Is there anything else? These two seem "nice to have" but nothing that would 
hinder development of the frameworks.

Cheers,
  Albert

> 
> Best Regards
> Martin