Change the ugly global slaves object to be a member of the db object and
implement the items database as a separate integrety verifying class in
lib/database.
Remove remoteMap specific code left behind after the removal of the
remoteMap plugin in 6415784. The plugin interface should be versatile
enough to allow all of this code to reside inside the plugin itself.
The masterPlugins array should not be a global. The ejs templates
already have it provided through locals.masterPlugins and plugins get it
through onLoadFinish. Make masterPlugins local to master.js again and
fix the ejs templates to use locals.masterPlugins.
Hornwitser