Added skeleton methods for depth first and breadth first searches
Add skeleton tests for breadth and depth searches
Since our first submission was very inefficient, wanted to redo before traversal starting with the guido example we saw in class today
Update README
added doc strings to all functions
Add nodes function and test
Add add edge, del node, add node methods and tests
Add has node, del node and del edge methods with tests
Add more complete tests to add_node and del_node
Add neighbor method and tests
Added adjacent method and tests
Refactored syntax a bit
More refactoring
Merge pull request #11 from johnshiver/graph_traversal

Graph traversal