Code review comment for lp:~kim0/pyjuju/adding-hook-traces-to-readme-for-bashified-example

Excerpts from Ahmed Kamal's message of Thu May 26 18:51:41 UTC 2011:
> Ahmed Kamal has proposed merging lp:~kim0/ensemble/adding-hook-traces-to-readme-for-bashified-example into lp:ensemble.
>
> Requested reviews:
> Ensemble Team (ensemble)
>
> For more details, see:
> https://code.launchpad.net/~kim0/ensemble/adding-hook-traces-to-readme-for-bashified-example/+merge/62537
>
> Fixed docs to match hook changes (joined instead of changed) and new execution order

Thanks again, for working on the documentation. Looks good but there are some errors in the traces.

There is no ensemble 'established' hook for relations. Instead we have joined called, all joines
are followed by a changed invocation (independent of if there is an actual change subsequent to
the join). All subsequent change invocations are due to changes in the related units.