--User changes

-Remove some warnings about interpolation type on first and last flames.

--Code changes
 -Make DE block size always be 16x16, this should help stability on some Nvidia cards. No changes for AMD cards since they were that size already.
-Since the block size is now so small, do not reduce it further when supersampling.
 -Clean up some variable names and documentation around OpenCL DE to be more clear.

Source/EmberCL/RendererCL.h

@@ -178,7 +178,7 @@ private:
 	eRenderStatus RunDensityFilter();
 	eRenderStatus RunFinalAccum();
 	bool ClearBuffer(size_t device, const string& bufferName, uint width, uint height, uint elementSize);
-	bool RunDensityFilterPrivate(size_t kernelIndex, size_t gridW, size_t gridH, size_t blockW, size_t blockH, uint chunkSizeW, uint chunkSizeH, uint chunkW, uint chunkH);
+	bool RunDensityFilterPrivate(size_t kernelIndex, size_t gridW, size_t gridH, size_t blockW, size_t blockH, uint chunkSizeW, uint chunkSizeH, uint colChunkPass, uint rowChunkPass);
 	int MakeAndGetDensityFilterProgram(size_t ss, uint filterWidth);
 	int MakeAndGetFinalAccumProgram(double& alphaBase, double& alphaScale);
 	int MakeAndGetGammaCorrectionProgram();