+ http://www.loc.gov/standards/sru/next-version.html
+ The most significant part of the v1.2 change is support for
+ sorting, but as of this writing (29th June) the official SRU
+ maintenance agency web site at
+ http://www.loc.gov/standards/sru/index.html
+ does not include any specification for CQL sorting.
+ Therefore the original proposal at
+ http://zing.z3950.org/cql/sorting.html
+ is still considered canonical.