[osis-core] osisCore_Candiate_1.1_003 - 9 Tricky point with default work and refSystem

[Todd Tillinghast]

As Harry points out, a work is not equivalent with a reference system.
As a result by declaring the default work using osisWork in <osisText>
we are not declaring the default reference system.  It seems we really
need to declare the default reference system as well as the default
work.

<osisText osisWork="Bible.TEV" refSystem="Bible.KJV">...</osisText>

Both osisWork and refSystem being required attributes and both being
IDREFs.

Todd