Modify cassandra.* configuration settings to prefix with spark. so they can be used from spark-shell and set via conf/spark-default.conf
Update support for spark-shell, add 'auth' to both spark.cassandra.username and spark.cassandra.password, update IT test to use new config options
Merge branch 'master' of https://github.com/tsindot/spark-cassandra-connector into tsindot-master
change all cassandra.* properties and config entries to be spark.cassandra.* so it is consistent.
Merge branch 'master' of https://github.com/tsindot/spark-cassandra-connector into tsindot-master
Changed property names from cassandra.* to spark.cassandra.* in RDDFunctions. Fixes #44.
Merge branch 'tsindot-master'