--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/Fractorium.h

@@ -145,6 +145,10 @@ public slots:
 	void OnActionAbout(bool checked);//Help.
 
 	//Toolbar.
+	void OnActionCpu(bool checked);
+	void OnActionCL(bool checked);
+	void OnActionSP(bool checked);
+	void OnActionDP(bool checked);
 
 	//Library.
 	void OnEmberTreeItemChanged(QTreeWidgetItem* item, int col);
@@ -324,6 +328,9 @@ private:
 	//Embers.
 	bool HaveFinal();
 
+	//Toolbar.
+	void SyncOptionsToToolbar();
+
 	//Library.
 	pair<size_t, QTreeWidgetItem*> GetCurrentEmberIndex();
 
@@ -358,6 +365,7 @@ private:
 	void SetTableWidgetBackgroundColor();
 
 	//Rendering/progress.
+	void ShutdownAndRecreateFromOptions();
 	bool CreateRendererFromOptions();
 	bool CreateControllerFromOptions();