[Rivet] Plugin Projections

[David Grellscheid]

Hi!

> You *might* be able to write a new projection and build it into an
> analysis plugin, because then the only code that is using that
> projection will have been able to see its interface while being
> compiled. I have a vague feeling that I *have* done that before, but if
> I did it was a long time ago!

We do this for NQN all the time, it works very well. As long as you put 
the projection code into the .so together with the analysis, there are 
no problems.

   David