Added include and exclude node filters into execution data provided to notification plugins

Hi,

We'd like to be able to display any node filters used in a HipChat notification (via hipchat notification plugin) so I've added the include and exclude node filter maps to the execution data map that is passed to a notification plugin. What would also be nice is the list of nodes that were actually matched, is there an easy way of adding these into the execution data also? (I did try append successful/failed nodes list, but these are obviously not populated for an 'On Start' notification)

Cheers,
Hayden