Version 1.0.160 release

[Frank Bennett]

In this release, and its predecessors:


1.0.160

Make sorting work against the citation-label virtual variable.


1.0.159

Run processor in a try/catch to prevent a crash during preview from
blocking
reconstruction of the registry.

Eliminate nesting closure that was causing a non-fatal tag mismatch.

Force all-uppercase terms to lowercase (a hack that really should not
be necessary, and may not be required with recent fixes).


1.0.158

Reimplement citation-label to permit configuration of the generated
string. The algorithm can be controlled by adjusting the "trigraph"
string in citeproc.opt.trigraph.

The string consists of a series of specifiers delimited by ":", which
define the format for strings generated against a nameset
corresponding in length to the position of the specifier (beginning
with 1). Each specifier must begin with "A", and must consist only of
characters "A", "a", and "0". where "A" indicates a name boundary, and
"0" indicates a digit in the "issued" year.