Initial commit of Spark Streaming addition to read/write to Cassandra
Minor fixes - excluding guava from spark-streaming, renamed StreamingFunctions.scala to StreamingContextFunctions.scala, added Helena's id
Minor changes to resolve PR suggestions
Merge branch 'wip-55-spark-streaming' of github.com:datastax/spark-cassandra-connector into wip-55-spark-streaming
Added actor stream write / read specs
Minor cleanup of a redundant test fixture.
Minor batch and scale tuning for performance in streaming test and demo
Merge branch 'master' of https://github.com/datastax/cassandra-driver-spark into wip-55-spark-streaming

Conflicts:
	project/CassandraSparkBuild.scala
Further cleanup and additions for spark streaming testing
Merge branch 'wip-55-spark-streaming' of github.com:datastax/spark-cassandra-connector into wip-55-spark-streaming
Merge branch 'any-object-factory-fix' of https://github.com/datastax/cassandra-driver-spark into wip-55-spark-streaming
Refactored streaming tests
Fixed run for streaming in IT test
Fix Spark Streaming integration test
Merge branch 'b1.0' of https://github.com/datastax/cassandra-driver-spark into wip-55-spark-streaming
Removed license comments from scala files. license.txt is enough.
Added DStream functions, minor changes in tests
Added comments to DStreamFunctions
Docs fixes