* Tagging for replicated event sourcing
* Docs improvements
* Support for currentEventsByTag in persistence testkit and test coverage for tags in replicated
* Support for having multiple isolated testkit journals and corresponding read journals in persistence testkit
* Read journal selection per active-active replica
* a dedicated ReplicaId type to avoid stringly typed mismatches
* using real EventSourcedBehaviorImpl
* using new inmem journal (PersistenceTestKit)
* advantages compared to a "fake" driver
* no difference in implementation details from real thing
* no limitations
* less maintance
* added internal messsages to EventSourcedBehaviorImpl to be able to grab state
and persistenceId
* GetState as InternalProtocol instead of Signal so that it is stashed
* serialization checks, using SerializationTestKit
* better testKitGuardian naming to allow multiple PersistenceTestKit
* support testing of restart
* support failure testing by using PersistenceTestKit
* update doc sample
* apidoc, reference docs, and javadsl
* Add scalafix plugin for jdk 9.
* Add command alias sortImports.
* Excludes some sources from SortImports.
* Update SortImports to 0.4.0
* Sort imports with `sortImports` command.
