Changing the Pregel interface slightly to better support type inference.
Adding some additional graph generators to support unit testing of the analytics package.
Updating analytics to reflect changes in the pregel interface and moving degree information into the edge attribute.
Starting analytics test suite.
Merge branch 'VertexSetRDD_Tests' into AnalyticsCleanup
Fixing a bug in pregel where the initial vertex-program results are lost.
Adding dynamic pregel, fixing bugs in PageRank, and adding basic analytics unit tests.
Merge branch 'master' of https://github.com/amplab/graphx into AnalyticsCleanup
Merge pull request #34 from jegonzal/AnalyticsCleanup

Analytics Cleanup
Merge https://github.com/amplab/graphx