Added toolbox page to Debug interface, with deliberate crash feature.

src/libcalamaresui/utils/DebugWindow.cpp

 /* === This file is part of Calamares - <http://github.com/calamares> ===
  *
- *   Copyright 2015, Teo Mrnjavac <teo@kde.org>
+ *   Copyright 2015-2016, Teo Mrnjavac <teo@kde.org>
  *
  *   Calamares is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -17,6 +17,7 @@
  */
 
 #include "DebugWindow.h"
+#include "utils/CalamaresUtils.h"
 #include "utils/Retranslator.h"
 #include "utils/qjsonmodel.h"
 #include "JobQueue.h"
@@ -91,6 +92,11 @@ DebugWindow::DebugWindow()
         }
     } );
 
+    connect( crashButton, &QPushButton::clicked,
+             this, [] {
+        CalamaresUtils::crash();
+    } );
+
     CALAMARES_RETRANSLATE(
         retranslateUi( this );
         setWindowTitle( tr( "Debug information" ) );

src/libcalamaresui/utils/DebugWindow.ui

@@ -52,6 +52,33 @@
        </item>
       </layout>
      </widget>
+     <widget class="QWidget" name="toolsTab">
+      <attribute name="title">
+       <string>Tools</string>
+      </attribute>
+      <layout class="QVBoxLayout" name="verticalLayout_4">
+       <item>
+        <widget class="QPushButton" name="crashButton">
+         <property name="text">
+          <string notr="true">Crash now</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </widget>
     </widget>
    </item>
   </layout>