Stop ActorSystem with PoisonPill when storage reach a limit
Stop actor system on reaching limit at EvaluatePriority
Implement shutdown with propagation of Stop message
Change structure of message transmission and write tests
Fix TestSeedQueue with fake parent
Make set of links immutable in Gather
Filter links to the same site only
Add scalaz dependence
Remove old dispatcher and queue
Catch exception while parsing a link
Rectify sources