Merge branch 'NewHostPool' into 'release'

cmd/version.go

cmix/client.go

cmix/gateway/certChecker.go

cmix/gateway/certChecker_test.go

cmix/gateway/delay.go

cmix/gateway/guilty.go

cmix/gateway/hostPool.go

cmix/gateway/hostpool_test.go

cmix/gateway/nodeTester.go

cmix/gateway/params.go

cmix/gateway/pool.go

cmix/gateway/pool_test.go

cmix/gateway/rotation.go

cmix/gateway/runner.go

cmix/gateway/sender.go

cmix/gateway/sender_test.go

cmix/gateway/storeHostList.go

cmix/nodes/certChecker_test.go

cmix/nodes/register.go

cmix/nodes/registrar_test.go