[osis-core] Free-range grain-fed sacred cows

[Harry Plantinga]

> How about just using osisID of Matt.1.1 for all segments of the verse?
> This would require that all segments be in order, but you can retrieve
> all pieces by asking for all elements with osisID="Matt.1.1". You'd have
> to use grains to access other parts of the verse. But, of course, you'd
> be free to define a reference system that uses Matt.1.1.a,
> Matt.1.1.b, etc.
> in addition to Matt.1.1 .

An additional implication of this proposal, which may or may not be
desirable,
is that containers could be split.  If you can combine different elements
into one logical container by giving them the same osisID, you can have
pretty complex logical containers.

-Harry