Incremental progress to crossword editor form features
Incremental progress towards the UI milestone.  At this stage, the lack of navigability from JQuery wrappers to cellStatus objects is the root cause of functional bugs in the implementation.  The next corrective action is to graft the cellStatus object state onto the DOM objects it presently wraps.  Shifting from intensional semantics to extensional semantics will resolve the problem of visible navigation deficiency.  This checkin also contains a head start towards refactoring the isUnavailable() method to benefit from heuristic optimizations its present implementation lacks.
Early commit to pick up the revised graphics by merge