Turned LoadWikiGraph into a precomputation function and
LoadPrecomputationWikIGraph is used now.
crap
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Added removejunk method from preprocessing of wikipedia
Added Reverse Cat -> Cat edges
Changed VertexId to support backwards messages
Change Pregel to EdgeDirection.Either
Add Broadcast
Random Walk and BFS implemented
Conflicts resolved
added bfs and random walk
Add loadwikigraph changes
All resolved