simplify QTerminal inheritance scheme * Qterminal.h, Qterminal.cc: Merge QTerminalInterface class into QTerminal. (QTerminal::create): New function. (QTerminal::Qterminal): Now protected. * QUnixTerminal.h, QUnixTerminal.cpp, QWinTerminal.h, QWinTerminal.cpp: Derive from QTerminal, not QTerminalInterface. * QTerminalInterface.h: Delete. * libgui/qterminal-module.mk: Update file lists. * terminal-dock-widget.cc (terminal_dock_widget::terminal_dock_widget): Use QTerminal::create to create terminal object.

--- a/libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.cpp
+++ b/libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.cpp
@@ -25,7 +25,7 @@
 #include <termios.h>
 
 QUnixTerminalImpl::QUnixTerminalImpl(QWidget *parent)
-    : QTerminalInterface(parent) {
+    : QTerminal(parent) {
     setMinimumSize(300, 200);
     initialize();
 }