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
Merge pull request #30 from jegonzal/VertexSetRDD_Tests

Testing and Documenting VertexSetRDD
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 branch 'master' of https://github.com/amplab/graphx
Merge pull request #34 from jegonzal/AnalyticsCleanup

Analytics Cleanup
Merge https://github.com/amplab/graphx
More changes to the graph/pom.xml to make it match the other subprojects
Fixing a bug in reverse edge direction.
Adding more documentation to the Pregel API as well as additional functionality including the ability to specify the edge direction along which messages are computed.
Updating the GraphLab API to match the changes made to the Pregel API.
Implementing connected components on top of pregel like abstraction.
Finished updating connected components to used Pregel like abstraction and created a series of tests in the AnalyticsSuite.
Making suggested changes.
Adding collect neighbors and documenting GraphOps.
Minor modifications to documentation.