[Qt-creator] webkitwidgets: unknown module

[Vitali Baumtrok]

The problem is solved with the help of a guy from the #qt IRC channel.

It seems that the module qtwebkit isn’t built while compiling Qt. To 
compile qtwebkit change into directory qtwebkit:

     cd <qt path>/qtwebkit

Create/configure Makefile:

     ../qtbase/bin/qmake

Compile qtwebkit:

     make

I don’t know whether the missing compilation of qtwebkit is the expected 
behaviour.