ISPN-1113 Async store shutdown timeout is now much lower

Apart from lowering the timeout, we make sure that is never bigger than
the cache stop timeout and if it is, lower it and log a warn message.
ISPN-1119 Client log adjustments and avoid duplicate logging
ISPN-1122 To help debug this issue dump socket contents upon failure
ISPN-1122 Fixed merge leftover
ISPN-1126 Log exceptions correctly and if we run out retries, log error
ISPN-1157 - StartupListener overwrites ManagerInstance.instance even
if it's set already by container.

* Do not call getMcInjectedCacheManager() if ManagerInstance.instance
is set already.