Patch: Add init and cleanup functions to registry backends and call them if they are defined

[Richard Sharpe]

On Sat, Jan 10, 2015 at 1:02 PM, Richard Sharpe
<realrichardsharpe at gmail.com> wrote:
> Hi folks,
>
> Sometimes, as in my zookeeper backend, you need an init and cleanup function.
>
> This small patch provides that.
>
> Please provide feedback or push if OK ...

A small update. If the init function fails, we should not install it.
Rather, we should print a level 0 message in the log.

-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)
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