Version 1.0.167 release

[Frank Bennett]

In this release:

Replace several largely incomprehensible functions used to generate
alphabetic suffixes with a short function from Avram Lyon that is
concise, readable, and does the same thing.

Implement paired rendering and "and"-wise joins of multiple publishers
and publisher-places, where (a) rendered as the sole text elements
within a group, (b) with no affixes on the two text elements, and (c)
the data consist of semicolon-delimited lists of equal length, and (d)
(at least) name-delimiter is supplied on the ancestor cs:citation or
cs:bibliography node. The "and" term used for the join, if any, is
also that specified on the ancestor node.