don't need to initialize neography object everytime
What??
always use two spaces
Merge branch 'master' of https://github.com/xinuc/finalproject into xinuc-master

Conflicts:
	app/controllers/api/v1/nodes_controller.rb
	app/controllers/api/v1/recommendations_controller.rb
	app/controllers/api/v1/relations_controller.rb
Merge branch 'xinuc-master'