complete fillNodeCity to fully turn city of roads into city of nodes

 On branch master
 Changes to be committed:
	modified:   CityCameras/src/citycameras/CityCameraPlanner.java
	modified:   CityCameras/src/citycameras/Node.java
Merge branch 'master' of github.com:AndrewBusch/TDD

Conflicts:
	CityCameras/src/citycameras/CityCameraPlanner.java