RyuQ: Definition History

2013-06-20: 0.0.3
SP-expression refinement, implementation changes, corrections and ambiguity reductions.

2013-05-19: 0.0.2
Further reorganization, expanded definitions, corrected ambiguities and mistakes.

2013-05-17: 0.0.1
Reorganization into sections

2013-05-16: 0.0.0
Initial stab at writing some ideas down