Port to KF5/Qt5

TerminalDisplayAccessible is disabled for Qt5 currently since I don't
have any experience with accessible stuff and it is more complicated
than just changing a few includes

REVIEW: 111937

src/Emulation.cpp

@@ -192,7 +192,7 @@ void Emulation::sendKeyEvent(QKeyEvent* ev)
         // A block of text
         // Note that the text is proper unicode.
         // We should do a conversion here
-        emit sendData(ev->text().toUtf8(), ev->text().length());
+        emit sendData(ev->text().toUtf8().constData(), ev->text().length());
     }
 }