JMeter-plugin is a nice way of running jmeter tests and publishing the performance data in Hudson, take a look to this post I did sometime ago.
Said that, the good news are that we have added to the plugin the ability to collect and parse data from other sources like junit xml reports, and this is the reason why the plugin has been renamed to Performance-plugin which is a more generic name.
In the plugin's page you have a procedure to migrate your existing data from jmeter to performance plugin.
