[development] views module

[vlado]

> I should also mention that vlado has been talking of doing another  
> listings api (for relations)
mmm, it's kind of done actually. It is part of the relations effort I'm putting in,
I just needed something to test the messed up stuff I got into :)

It is probably computationally more heavy-weight than the views module,
but it goes far further, although after having a brief look on the code,
we came up with some similar ideas. Which is good.

Vlado