Merge pull request #1 from andres-leon/elloyd-branch1

added test comment
testing again formatted stuff
Merge remote-tracking branch 'origin/master'
more formatting
Merge pull request #2 from andres-leon/elloyd-branch1

learning git - minor comment changes
Merge pull request #3 from andres-leon/elloyd-branch1

Elloyd branch1
Delete workspace.xml
Delete vcs.xml
Delete modules.xml
Delete misc.xml
Delete encodings.xml
Delete cot6930a.iml
Delete .name
Delete scope_settings.xml
Merge remote-tracking branch 'origin/elloyd-branch1'
Added subgraphs for recommendation and copurchase data. Added scripts that created such files.
random subgraphs by group as well as script that created such files.
Oranized subgraphs into subgraphs folder.
Organized subgraphs into folder subgraphs
SimRank function added

Added SimRank Functionality
Prints to a dictionary simrank scores for each node with corresponding
node in comparison graph chosen.
Prints results to .csv files