New LDSql releases, v 0.9.12.1 and v 0.9.13.1

[boomerbubba]

Ward Tools devs:

I posted new releases of LDSql, fixing a date-calculation bug and
cleaning up the date code generally.

This release continues the forked roadmap to handle the missing MRNs
in recent MLS versions. Since Ward Tools developers are handling
backwards compatibility within their own loading stages, they are
advised to use v 0.9.12.1.

Mea culpa on the dates. Steve had actually reported symptoms to me
some time ago, and it took me this long to make the fix. The bug
affected certain edge cases of age calculations in about .5 percent of
the records, according to my testing.