Implemented capability for OortService to broadcast requests to all
nodes, so that the "owner" node can reply without the requesting node
 being forced to know who is the "owner" node.
Fixes COMETD-441 (Race condition in AbstractService for non-public
methods/classes).

Also fixed ServerAnnotationProcessor and ClientAnnotationProcessor,
along with all service classes used in tests.
Fixes COMETD-443 (SecurityPolicy.canCreate() may be called with a
null session).

Also updated SecurityPolicy's javadocs.
Implemented timeouts for actions in OortService.
Added few utility methods to OortLong.
Fixed javadocs.
Merged branch '2.7.x' into 'master'.
Merged branch '2.7.x' into 'master'.