Goodbye exports
Coffeedoc love
Add missing spec tests for metabolite
Merge branch 'develop' into feature/undo/bootstrap

Conflicts:
	app/assets/javascripts/helpers/mixin.timemachine.js.coffee
	app/assets/javascripts/models/node.js.coffee
	app/assets/javascripts/models/tree.js.coffee
	app/assets/javascripts/models/undotree.js.coffee
	app/assets/javascripts/views/raphael._.js.coffee