add art services, view, and controller
revise 'GenerateArtInfo' factory and 'ArtCtrl' to use promises, remove 'LikeArt' factory, move 'like' functionality to view
Merge pull request #36 from eave/master

(feature) add art services, view, and controller
(feature) add user page services, view and controller
Merge branch 'master' of https://github.com/aconnelly/project
styling to index and main html pages