(feat/recommend) Add timestamp to seen relationship
(feat/recommend) Increase reccomendation limit to 20)
Merge pull request #59 from wykhuh/feat/recommend

(Feat/recommend) Improve recommendation so it will only show painting users haven't seen.
Merge branch 'master' of https://github.com/GoldenLions/Artproject

Conflicts:
	client/www/scripts/controllers/artRecommend.js
Got rid of www file