collectd collector should use multiple collections to store data

[temsa]

As collectd reports a lot of different kind of data, it would be better to use a collection per type, like it used to be the case in some previous version of cube.

@mbostock should we maintain a fork just for this line ( :-s ), or would you merge it ?

[mbostock]

This sounds reasonable. I think if the plugin name is persisted in the collection name, we don't also need the plugin name in the event data, though.

[temsa]

yes, I agree, I can change that too, it's less than a line