--User changes

-Add toolbar buttons to switch some rendering options without having to open the options dialog.

--Bug fixes
 -Only update summary on render completion, no need to constantly update it.
 -Properly handle cancel even on variations dialog.

--Code changes
 -Add small function ShutdownAndRecreateFromOptions() to wrap shutting down the timer and recreating the renderer.
 -Use the overridden accept() and reject() functions more consistently across dialogs.

Source/Fractorium/OptionsDialog.h

@@ -32,6 +32,9 @@ public slots:
 	virtual void accept() override;
 	virtual void reject() override;
 
+protected:
+	virtual void showEvent(QShowEvent* e) override;
+
 private:
 	bool EarlyClip();
 	bool YAxisUp();
@@ -45,6 +48,8 @@ private:
 	uint PlatformIndex();
 	uint DeviceIndex();
 	uint ThreadCount();
+	void DataToGui();
+	void GuiToData();
 
 	Ui::OptionsDialog ui;
 	OpenCLWrapper m_Wrapper;