Added d3 library dependency
added two views to test d3 functionality versus jit
Merge branch 'master' of https://github.com/Stephenitis/CourseGraph into d3graph

Conflicts:
	Gemfile
	Gemfile.lock
	app/controllers/home_controller.rb
api index responds to a .csv request
added d3test.html views into versioned api path
Merge branch 'd3graph'