Explain how to install networkx and add networkx test as example of usage
Merge branch 'master' into networkx
Comply with PEP8 style guide
Merge branch 'master' into networkx
Add test_sample_map for networkx
Add Thumbs.db to gitignore
Merge branch 'master' into networkx

Conflicts:
	.gitignore
Add networkx lib to project
Remove unneccessary files from networkx
Merge branch 'master' into networkx
add get_region_graph to Map
Merge branch 'master' into networkx
Get first shortest_path test
Revert "Remove unneccessary files from networkx"

This reverts commit 17d75af4a131af2390bb25efd7f6df1f28e485af.
Fix shortest_path test
Merge branch 'networkx'