Added unit test and fix a partitioner problem.
Rename rawGraph to graph in Pregel.
Minor cleanup.
Code to run bagel vs graph experiments.
Added more logging to Analytics.
switching from floats to doubles in pagerank and sssp
merged with trunk
Merge branch 'master' of github.com:mesos/spark into graph
Refactored the Graph API for discussion.
Merge branch 'graph' of github.com:rxin/spark into graph

Conflicts:
	graph/src/main/scala/spark/graph/Analytics.scala
added documentation to graph and did some minor renaming
Merge branch 'master' of github.com:mesos/spark into graph

Conflicts:
	run
Merge branch 'master' of github.com:mesos/spark into graph
Merge branch 'master' of github.com:mesos/spark into graph
Renamed several functions and classes and improved documentation
Added the BytecodeUtils class for analyzing bytecode.
Merge branch 'graph' of github.com:rxin/spark into graph
Merge branch 'master' of github.com:mesos/spark into graph

Conflicts:
	run
	run2.cmd
Updated BytecodeUtils to ASM4.
Added a 64bit string hash function.