[Development] Rules for including private headers

[Ulf Hermann]

I've settled for the <private/whatever_p.h> syntax now. See 
http://qt-project.org/wiki/Coding-Conventions . Kai convinced me that 
qt_x11_p.h is actually special because it #undef's some things other 
headers may need.

-- 
Ulf Hermann, Software Engineer - Digia, Qt
Digia Germany GmbH, Rudower Chaussee 13, D-12489 Berlin
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