ISPN-2935 After view change single node is left in cluster, but still tries to invoke stuff remotely

* Make the view listener synchronous and move the processing to an async
  transport thread.
* Synchronize the view handling on the coordinator.
* When recovering the cache status after becoming coordinator, remove cache
  members that are no longer cluster members. (Even though the member will
  be removed when the next view is handled.)
ISPN-2910 Divide by zero exception on shutdown

Skip topology update when a new node becomes coordinator and all the
members of a cache leave while the coordinator recovers the state.
ISPN-2966 NBST: Concurrent leavers can lead to deadlock

Make the CH_UPDATE and REBALANCE_START commands asynchronous (but keep them OOB).