Move IndexedRDD and GraphSuite to org.apache.spark
Move IndexedRDDSuite to org.apache.spark
Move BytecodeUtils to the right package
Import appropriate Spark core classes
Merge pull request #2 from ankurdave/package-fixes

Package fixes (spark.graph -> org.apache.spark.graph)
After unit tests, clear port properties unconditionally
Merge pull request #3 from ankurdave/clear-port-properties-after-tests

After unit tests, clear port properties unconditionally

Also submitted to Spark upstream (mesos/spark#940)
Fix typo in aggregateNeighbors docs
Initialize sc in GraphSuite to avoid NullPointerException
Merge branch 'master' into aggregateNeighbors-returns-graph