Completes unit tests for PostScript evaluator and fixes two bugs in the evaluator itself
Optimized CalGrayCS's convertToRgb
Cleaner putBinaryImageData
Optimized PDFImage_undoPreblend
Optimized JPX's transformComponents
Optimized JPG.js - reduced memory usage + 2.16x faster getLinearizedBlockData

Linearize and scale the mcu blocks into the destination buffer in a single pass
Optimized JPG.js - 33% faster convertCmykToRgb
Merge pull request #4733 from timvandermeij/postscript-unit-tests

Completes unit tests for PostScript evaluator and fixes two bugs in the evaluator itself
Merge pull request #4708 from p01/graphic_optimizations_1

Graphic optimizations 1