Added base for JaccardSimilarity calculator.
Added Jaccard simularity calculator. fixes #17.
Added spec for iterative graph clustering.
Removed console statements
Added more base for mergeGraph function
Removed data dependency
Removed data dependency and added check test. Completes merging algorithm. fixes #21
Added compute similarity function. fixes #22
Updated function comment
Added recursive graph reduction function. fixes #18
Merge pull request #20 from jfarid27/analysisSprint

Analysis Sprint 1 Additions