[Development] Qt Project CI System : Windows 7 machines with some problems

[Sergio Ahumada]

Hi,

We've found that Windows 7 machines are not up and running at the moment 
so we've decided to disable them from Qt Project CI system until we can 
fix them.

This means that you might need to be a little bit more careful with what 
you stage during the weekend since they might introduce some errors due 
to this platform not being tested.

This applies for all Qt5 modules and Qt 4.8 CIs.

As soon as this problem gets fixed, we will enabled them again and will 
check/fix possible errors on Windows.

Sorry about the inconvenience.

Cheers,
-- 
Sergio Ahumada