Add a global version number.

So the main() and About dialog can use it.

src/SeerAboutDialog.cpp

@@ -1,4 +1,5 @@
 #include "SeerAboutDialog.h"
+#include "SeerUtl.h"
 #include <QtGui/QColor>
 #include <QtGui/QPalette>
 
@@ -8,14 +9,22 @@ SeerAboutDialog::SeerAboutDialog (QWidget* parent) : QDialog(parent) {
     setupUi(this);
 
     // Setup the widgets
+
+    // Add the Version number to the end of the About text.
+    // Scroll back to the top.
+    textEdit->moveCursor (QTextCursor::End);
+    textEdit->insertPlainText ("\n");
+    textEdit->insertPlainText ("\n");
+    textEdit->insertPlainText ("Version: " + Seer::version());
+    textEdit->insertPlainText ("\n");
+    textEdit->moveCursor (QTextCursor::Start);
+
     // Set the TextEdit's background to the same as the window's.
     QColor windowColor = palette().color(QWidget::backgroundRole());
 
     QPalette p = textEdit->palette();
     p.setColor(QPalette::Base, windowColor);
     textEdit->setPalette(p);
-
-    // Connect things.
 }
 
 SeerAboutDialog::~SeerAboutDialog () {