ENH: Add ServerConfig updateAllPropertiesInBatch with a default of true

[rbygrave]

What this does is detect when an update is occurring in JDBC batch and ... IF the updateAllProperties mode has not been explicitly set on the transaction uses the server wide default as per ServerConfig (which defaults to true).

The point of this is to increase the use of common preparedStatements in JDBC batch mode - generally including all loaded properties will mean the update statements are the same assuming the beans are loaded in the same way (via the same query etc).