These patches fix the find & search scripts to work
properly. The fixes are:
1) Modern (v4.12 tested) glimpses do return 0 for
matches, 1 for no matches and 2 for errors.
2) Since $config->dbdir no longer automatically points
to a version specific directory, add the $release when
accessing the .glimpse* files.
3) You also need to configure $glimpsedbdir in lxr.conf
4) The genxref script currently doesn't run the glimpse
indexer (filed as a bug)