new organization for release, stable, and default versions of Octave * release-octave-1-gnulib.patch, release-octave-1-qt.patch, release-octave.mk: Copied from stable-*. * release-octave.mk: Explain purpose of file in comment. Update package name. * stable-octave-1-qt.patch: Delete. * stable-octave.mk, default-octave.mk: Explain purpose of file in comment. Use invalid URL for sources. Set version to 4.4.0+ to distinguish from the octave-release package. * dist-files.mk: Update. * configure.ac: Accept --enable-octave=release option and make it the default. * index.html: Include a release-octave package in the list.

diff --git a/libgui/src/settings-dialog.cc b/libgui/src/settings-dialog.cc
--- a/libgui/src/settings-dialog.cc
+++ b/libgui/src/settings-dialog.cc
@@ -34,6 +34,8 @@ along with Octave; see the file COPYING.
 #include "workspace-model.h"
 #include "settings-dialog.h"
 #include "ui-settings-dialog.h"
+
+#include <QButtonGroup>
 #include <QDir>
 #include <QFileInfo>
 #include <QFileDialog>