Added multi db support
Bugfixes
More detailed log message
Changed extension to only check arguments and properties at initial run
Added descriptions about new arguments
Fixed a bug where metric names are not converted
Removed 'Status' from metric path
Replaced isEmpty() for JDK 1.5
Updated README.md
Merge branch 'master' of github.com:qldong/cassandra-monitoring-extension into qldong-master