0.4.1.8 Beta - Date pending testing.

--User changes
 Thread image writing in EmberAnimate and when doing animation sequence in final render dialog.
 Add total time output for verbose mode in EmberAnimate to match EmberRender.

--Bug Fixes
 Fix incorrect iters ran/requested percentage in EmberAnimate to match EmberRender.
 Fix motion blur being disabled when doing animations in final render dialog.
 Allow for boolean command line options which default to true to be set to false.

--Code Changes
 Minor changes to enable a Mac build.
 Double the memory required for the final output buffer in RendererBase::MemoryRequired() when threading image writing.
 Reuse same buffer for RgbaToRgb() in EmberRender and EmberAnimate.
 Only resize in RgbaToRgb() if the two vectors are not the same.
 Add a final output buffer ping-ponging mechanism to facilitate threaded writes in controllers.

Source/Fractorium/FinalRenderEmberController.h

@@ -131,6 +131,7 @@ protected:
 	void CancelPreviewRender();
 	void RenderComplete(Ember<T>& ember);
 	void SyncGuiToEmber(Ember<T>& ember, size_t widthOverride = 0, size_t heightOverride = 0);
+	void SetProgressComplete(int val);
 
 	Ember<T>* m_Ember;
 	Ember<T> m_PreviewEmber;