docs for advisory locks

["Merlin Moncure" <mmoncure(at)gmail(dot)com>]

ok, here is the promised docs for the advisory locks.

some quick notes here: this is my first non trivial patch (albeit only
documentation) and i am a complete docbook novice.  i also dont have
the capability to build docbook at the moment.  so consider this a
very rough draft.  any comments are welcome particularly from someone
willing to build the sgml and check for errors...sorry about that but
i wanted to get this up as soon as possible.

thanks
merlin

Attachment: advisory_docs.patch
Description: Binary data