Adding daltonize effect

A colour changing effect designed to increase colour contrast for
viewers with colour vision deficiency (colour blindness). Created by BBC
R&D to test shader based effects on live video.
Change LMS-RGB to mat ops, tidy spacing and title
Remove mention of Chrome Frame
Merge pull request #27 from davidle/master

Add daltonize effect
Clean up white space in daltonize effect; add to index.html
Merge pull request #29 from neilparikh/patch-1

Remove mention of Chrome Frame
Added daltonize effect to readme
Merge branch 'master' into gh-pages