[fluxus] commits

[dave]

* (osc-destination) can be reset as many times as you like, for sending
osc messages to different apps

* (turtle-push) (turtle-pop) added a state stack to the turtle builder
for recursive modelling fun - the push records the turtle position and
direction, and the pop restores old positions/directions. (turtle-reset)
clears the stack, and resets the turtle.

* (hint-vertcols) tells the poly primitive to actually use the vert
colours specified in pdata, this disables the colour state setting for
that primitive (ie the current (colour)) - you can't use both, due to
opengl limitations. need to add nurbs support too...

cheers,

dave