Fix for site clone
Merge pull request #56 from wshafer/production

Fix for site clone
Merge remote-tracking branch 'upstream/production'

Conflicts:
	src/Rcm/Controller/AdminController.php
	src/Rcm/Entity/PluginInstance.php
	src/Rcm/Entity/PluginWrapper.php
	src/Rcm/Entity/Site.php
Fix commit
Updated plugin interface and merged instance configs into core