[fluxus] commits

[dave]

more from the workshop discoveries todo list...

* (show-axis 1) now also renders locators for all the joints in the
scene, with positions and rotational axes for types BallJoint,
HingeJoint and Hinge2Joint
screenshot attempt: http://www.pawfal.org/dave/images/joints.png
might make them prettier as and when

* attaching joints to passive objects no longer results in a crash, but
just prints warnings instead (it's not possible)

* a new joint type (build-fixedjoint obj) allows you to fix an active
object so it's static in the scene - any other joints can now be
attached to this fixed object (you can hide it if you need to)

* (get-transform) when not used between a (grab) and (ungrab) this
returns the current transform from the stack

cheers,

dave