[Development] api changes

[Oswald Buddenhagen]

On Fri, Apr 13, 2012 at 03:16:54PM -0300, ext Thiago Macieira wrote:
> 2) add #pragma qt_no_master_include so that they aren't included in <QtGui> 
> and people use them by accident because they happened to complete in QtCreator 
> or another IDE
> 
this is entirely unnecessary when the files are renamed to _p.h.
need for using syncqt pragmas generally indicates that something
exceptional is going on, and should be discussed with the buildsystem
maintainers.