small edits to visual in chp1
adding color links to gh-pages/recompiling privacy algo
Merge branch 'master' of github.com:CamDavidsonPilon/Probabilistic-Programming-and-Bayesian-Methods-for-Hackers into gh-pages
Merge branch 'gh-pages' of github.com:CamDavidsonPilon/Probabilistic-Programming-and-Bayesian-Methods-for-Hackers into gh-pages