Moving configuration service to plexus-registry

[Brett Porter]

Any objections to me moving the configuration service out of the  
database (and take some of the bits out of application.xml) and  
putting them in the registry? Basically the same thing I've just done  
for Archiva.

Docs on the registry are here: https://svn.codehaus.org/plexus/plexus- 
sandbox/trunk/plexus-components/plexus-registry/src/site/apt/index.apt

Cheers,
Brett