[neon] Qt 5.6.0 now live

[Harald Sitter]

Qt 5.6.0 is now available in all repositories (dev/unstable,
dev/stable, and user) by default.

Thanks to everyone who helped testing!

If you experience any problems file a bug please:
https://bugs.kde.org/enter_bug.cgi?product=neon&format=guided

Known issues:
- PyQt5 will be removed as we do not build it for neon

https://plus.google.com/101588423559652288894/posts/DznyRaFYVun

HS