more devel packages need to be installed

[Cristian Ionescu-Idbohrn]

On debian (and derivatives):

	libqtwebkit-dev

Compile error:

,----
|     CXX qt-gui.cpp
| In file included from qt-gui.cpp:22:0:
| qt-ui/mainwindow.h:10:23: fatal error: QMainWindow: No such file or directory
|  #include <QMainWindow>
| 		       ^
| compilation terminated.
`----

Where's QMainWindow coming from?


Cheers,

--
Cristian