Distorted Android

New vertex effect 'PINCH'

Complete moving center to 3D.

Unify Effects3D and Matrix3D (still incomplete!)

Encode more info in the EfectNames enum.

Progress with WindManager.

Dynamics: Introduce 2 Modes of operation:

- 'random access' mode, where we are able to call a single Dynamic from multiple thread simultaneously.
- 'sequential' mode, which only permits sequential interpolation from one client.

The second mode has an advantage when one needs to change mDuration: it keeps on interpolating smoothly. In the first mode, this is not possible.

2 bugfixes:

- in Dynamics, it has to be t<=0.5 (rather than t<0.5) (see comment in code)
- in EffectQueueVertex, we need to postprocess() the last time, when effect is finished but not removed!

Minor details

Progress with Wind

Tidy up 'Cubes' app