Do not loose WindowType flags when setting translucent background in X11
Do not loose WindowType flags when setting translucent background in X11

This fixes KRunner on XMonad.   The Qt::Dialog flag of the krunner dialog
was lost when the Qt::WA_TranslucentBackground was set,  leading to
incorrect behaviour in some window manager (such as xmonad)

Reviewed-by: Samuel

RLovelett/qt,KDE/qt,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,RLovelett/qt,RLovelett/qt,igor-sfdc/qt-wk,radekp/qt,igor-sfdc/qt-wk,radekp/qt,KDE/qt,KDE/qt,igor-sfdc/qt-wk,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,radekp/qt,KDE/qt,radekp/qt,KDE/qt,RLovelett/qt,RLovelett/qt,igor-sfdc/qt-wk,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,radekp/qt,radekp/qt,radekp/qt,igor-sfdc/qt-wk,radekp/qt,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,RLovelett/qt,RLovelett/qt,pruiz/wkhtmltopdf-qt,KDE/qt,pruiz/wkhtmltopdf-qt,RLovelett/qt,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,KDE/qt,RLovelett/qt,radekp/qt,RLovelett/qt,RLovelett/qt,radekp/qt,pruiz/wkhtmltopdf-qt,KDE/qt