[ISPN-4645] Many XSD default values do not match the defaults from the

corresponding configuration builder

https://issues.jboss.org/browse/ISPN-4645

Updated *ConfigurationBuilder and XSD files to have the correct default
values
Modified test case code that verifies the default value for L1
configuration
>
> 1) The default in the XSD for queue-size should be 0
>
Correct

> 2) The docs in the XSD for queue-size should be updated
>
Correct

> 3) The default in the code will remain at 1000, because asyn has to be
> enabled for the queue to be used
>
The queue won't be used if you just enabled `async` with the programmatic
config, you also have to enable `useReplQueue`. Setting a non-zero
`queue-size` in the XML automatically enables `useReplQueue`, but setting
`replicationQueueMaxElements` in the code won't enable it.