[osis-core] Use of "+" in grain of a reference.

[Todd Tillinghast]

And I did not use the "+" behavior?  It seems to indicate a range or
characters rather than a point.  When referring to a segment of a verse
it would seem the only appropriate value following the "+" would be the
number of characters in the segment not the number of characters in the
first word in the segment.  

Have I missed the boat on the "+"? 
Is it to help parse the word in parentheses?  If this is the purpose
would it be more "third normal" to just count the characters of the word
in parentheses?

Is there a reason to not remove the "+"?

Todd