Set release number to 0.9.8.0
Added Cluster ID to commit log block header
Improved secondary index query support
Got rid of unused merge_diff tool
Changed default Hadoop distro to cdh4
issue 1080: Do localtime conversion for all datetime values passed through API
issue 1146: Change default Hypertable port numbers to be non-ephemeral
Removed source_machine variable and localhost role from Capfiles