Finished changes to the tree view and javascript. Now need to add functional tests
Merge branch 'develop' into feature/MC-118

Conflicts:
	web-app/js/pathways/AppViewModel.js
topLevelPathway refreshes given changes i.e. if a node is added
MC-118 #close Added spock functional test and finished basic tree view functionality
Merge branch 'feature/MC-118' into develop