Release version 1.0.3

Another bug fix release...

• Clean up attribute tables in README.md
• Add namenode to command and use start_with? in hadoop_hdfs_ha_checkconfig recipe ( Issue #20 )
• Removed empty tests ( Issue #21 )
• Check for new properties in hbase_checkconfig recipe ( Issue #22 )
• Switch default version of CDH from 4 to 5 ( Issue #23 )
• Fix ZooKeeper logging ( Issue #24 )
• Check new properties before deprecated ones ( Issue #25 )