CDK-59. Change packages to com.cloudera.cdk
Repackaged com.cloudera.cdk.flume to com.cloudera.cdk.data.flume
Upgrade to CDH 4.3.0.
Roll back to Guava version 11.0.2 for compatibility with Hadoop (CDH 4.3.0).
Update documentation for running against CDH 4.3.0