Merge pull request #21 from rkp8000/master

Fixed conflicts. Added new figures.
Merge pull request #22 from rkp8000/master

Add lists of important nodes & neighbors.
updated saving of movie files
Merge pull request #23 from rkp8000/master

Make areas_by_rank_script take alpha values, etc.
bugs/optimization in graphing
Merge remote-tracking branch 'upstream/master'
Write function for analyzing bidirectionality of network. Create graphical interface for viewing properties of certain data points.