update accelerate to generic
simplify effect tracing
simplify move tracing
implement wait action
be consistent with effect creation
generify animation
remove unused
update vader moves to generic effects
update readme
tweak animate - elapseOnAdd allows initialization of drawable when animate is set (immediately drawable)
create setAction - make action setting less intrusive/knowledgeable about the effect model.
make just one set of effects, called 'effects' (not preMove/postMove)
remove unused
update mps constants
use new again
fix vader fade.  introduce atEnd functions
use loop() action
remove LOOP constant
remove FINISH_GOB constant
remove FINISH_EFFECT constants