Updated akka version; minor improvements
Changed PoisonPill to stop(self)
changed global ExecutionContext to Akka dispatcher
Merge branch 'updated_akka' of github.com:ScalaConsultants/akka-persistence-eventsourcing into updated_akka
removed remaining global ExecutionContexts
fixed tests
Merge pull request #4 from ScalaConsultants/updated_akka

Updated akka version; minor improvements