Rename various classes; fix a bug in Around the World.
Major change in API: separate the GRID from DistortedObject; completely remove classes derived from DistortedObject.
remote unneeded 'static' variables and methods from the 'Dynamic' app
Improvements to the Dynamic app.
1. Attempt to deal with unstable Orthonormal Base in Dynamic class (so far unsuccessful)2. Improvements to the 'Dynamic' (and by necessity, 'MovingEffects') applications (to be able to debug the previous)
Further reduce the distortedObject's API - now only 26 methods, 1/4 of the 104 before the reorganization.