Bumping changelog
Merge remote-tracking branch 'origin/master'
Removing data-uri encoded image, replacing them with embeded files (resulting file is lighter)
Fixing logo on hackage home page
Fixing logo in readme
Fix grammar (s for plural)
Fix description for colorMap

Function colorMap applies a function to all components.
Applying to colors would imply it doesn't apply the function
to the alpha plane of RGBA images, as it is questionable
whether transparency could be called a color.
It also has dubious meaning for Y, YCbCr etc.

It should probably be called componentMap, planeMap or something.