remove graph_import (all its code is now in graph_import.py)
added movie functionality
Merge pull request #17 from rkp8000/master

Minor edits.
Changed standard graphs; added one to plot different stats against one another
Removed bogus function from plot_net
added presentation folder
Delete garbage.txt

delete
Merge pull request #18 from sidh0/master

Added plot x y for standard graphs
Added Figures folder with two figures.
Merge pull request #19 from sidh0/master

Added Figures folder with two figures.
added graph theory explanatory figures
Fixed conflict.
Added figures.