Minor touchups

Translator function factory is now provided by the graph
 database implementation, so HAGD can provide the dense node
 translator
StoreId has the value for store version as a long hardwired
Log files are no longer moved during upgrade
The masterClientResolver does not get reset during
 protocol mismatches
The IdGeneratorFactory resets relationship group id generator
 to master if running in compatibility mode
The RollingUpgradeIT applies much more sophisticated load