CAMEL-6130: Setting refernece parameters on endpoints improved to provide class type when looking up in Registry. This fixes lookup with OSGi where the OSGi Service Registry mandates registering the service with its class type. Thanks to Aaron Whiteside for the patch and his hard work on this.

git-svn-id: https://svn.apache.org/repos/asf/camel/trunk@1453773 13f79535-47bb-0310-9956-ffa450edef68