* change package name to akka.cluster.sbr
* reference.conf has same config paths
* akka.cluster.sbr.SplitBrainResolverProvider instead of com.lightbend.akka.sbr.SplitBrainResolverProvider
* dependency from akka-cluster to akka-coordination, for lease strategy
* move TestLease to akka-coordination and use that in SBR tests
* remove keep-referee strategy
* use keep-majority by default
* review and adjust reference documentation
Co-authored-by: Johan Andrén <johan@markatta.com>
Co-authored-by: Johannes Rudolph <johannes.rudolph@gmail.com>
Co-authored-by: Christopher Batey <christopher.batey@gmail.com>
Co-authored-by: Arnout Engelen <github@bzzt.net>
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