Upgrade Java driver to version 2.1.2. Replace hardcoded protocolVersion -1 with a proper version taken from ClusterConfiguration. Use non-deprecated variants of serialize and deserialize methods in DataType.
Merge pull request #386 from datastax/wip-fix-protocol-version

Upgrade Java driver to version 2.1.2. Replace hardcoded protocolVersion ...
Fix saving to tables with uppercase column names. Fixes #377.
Merge pull request #393 from datastax/wip-377-uppercase-column-names

Fix saving to tables with uppercase column names. Fixes #377.
Merge branch 'b1.0' of github.com:datastax/spark-cassandra-connector into b1.1
Merge branch 'b1.1' of github.com:datastax/spark-cassandra-connector