[Fluxus] commits

[Dave Griffiths]

Hi all,

Some quick fixes:

* Optimisations for ribbon and particle rendering - these are now faster
in cases where you have many primitives of these types.
* (print-info) outputs the current and max number of primitives
rendered.
* Fix for the type primitive, which wasn't resolving some (fairly
common) edge cases with the tesselator. If you'd had missing characters
in some fonts before, this should fix it.

cheers,

dave