#3322 - Changing the name of the bigBounce actor in RemotingSpec to a unique one so that there is no race between tests.
Publish cluster metrics periodically, see #3296

* instead of when it receives metrics gossip and when it collects metrics
Merge pull request #1419 from akka/wip-3322-generating-unique-name-for-big-bounce-√

 #3322 - Changing the name of the bigBounce actor in RemotingSpec to a u...
Upgrade ScalaBuff to 1.2.0
Merge pull request #1435 from akka/wip-upgrade-scalabuff-to-1.2.0-ban

Upgrade ScalaBuff to 1.2.0
Heartbeat interval was too low compared to awaitCond sampling #3289
io-tests: simplify TcpConnectionSpec in preparation for coming modifications

This doesn't change any test logic, it merely structures the test fixture code a bit differently to make it easier to insert additional mocks required for coming additions.
io: small clean-ups
io: remove SelectionKey lookup and reduce IO-layer-internal message volume
io: add comments based on review feedback
Merge pull request #1420 from akka/wip-3296-pub-metrics-patriknw

Publish cluster metrics periodically, see #3296
Merge remote-tracking branch 'upstream/master'