Changed AttributeDescription.{ad_cname,ad_lang} to struct berval everywhere
Deleted ad_free() everywhere
Added ad_mutex to init.c
The AttributeDescriptions are in a linked list hanging off of the
corresponding AttributeType.
to activate. The bdb_decode works in-place on the db data. Add/Search are
OK, I think Modify needs to be tweaked. Don't use this yet unless you want
to help finish it.