ISPN-2504 - WriteSkew check fails for entries which are inserted first time
ISPN-2928 Fix the JDBC configuration parser not to set the connectionUrl
with the driverClass value
Remove unused ResponseGenerator dependency

This used to be injected in CacheImpl to make sure the ResponseGenerator is properly constructed if needed but this is no longer required since ComponentRegistry already does that.
ISPN-2749 Use StateTransferManager.isStateTransferInProgressForKey(key) whenever possible instead of ad-hoc implementations