amplab/graphx — pull request #121 by ankurdave (2013-12-21 00:04:46+00:00)
Title: Simplify GraphImpl internals further

**Depends on #120. Incremental diff: https://github.com/ankurdave/graphx/compare/6d1bf0d...more-simplify**

* VertexPlacement is only used in VTableReplicated, so this PR creates it on demand there rather than passing it around in GraphImpl.
* Rename VTableReplicated to ReplicatedVertexView.