allow admins to unreserve resources reserved by other users

Signed-off-by: Robin Jarry <robin.jarry@6wind.com>
[maven-release-plugin] prepare release lockable-resources-1.3
[maven-release-plugin] prepare for next development iteration
Fix changed semantics in IsQueued()

Signed-off-by: Aki Asikainen <aki.asikainen@kone.com>
[maven-release-plugin] prepare release lockable-resources-1.4
[maven-release-plugin] prepare for next development iteration
Use QueueTaskDispatcher canRun() instead of canTake(), add status of queuing and button for dequeue