Additional changes to work with Simon's pull request.

-Remove unneeded glFinish() call in GLWidget.
-Remove unneeded AMD_OS_WIN preprocessor in several projects.
-Define NVIDIA in all projects that use the NvidiaRelease build and depend on OpenCL.

Source/Fractorium/FractoriumRender.cpp

@@ -434,8 +434,8 @@ bool FractoriumEmberController<T>::Render()
 			if (iterBegin || ProcessState() == ACCUM_DONE)
 			{
 				if (m_FinalImage[m_FinalImageIndex].size() == m_Renderer->FinalBufferSize())//Make absolutely sure the correct amount of data is passed.
-					//gl->repaint();
 					gl->update();
+					//gl->repaint();
 				
 				//m_Fractorium->update();
 				//m_Fractorium->ui.GLParentScrollArea->update();

Source/Fractorium/GLWidget.cpp

@@ -251,7 +251,6 @@ void GLWidget::paintGL()
 		glDisable(GL_LINE_SMOOTH);
 		glDisable(GL_POINT_SMOOTH);
 
-		glFinish();
 		m_Drawing = false;
 	}
 }