Remove some wrongly used System.err calls

Signed-off-by: rsnape <rsnape@dmu.ac.uk>
parameterise root sim directory and temp disable expensive network build

Signed-off-by: rsnape <rsnape@dmu.ac.uk>
Upgrade RHI decision model

Signed-off-by: rsnape <rsnape@dmu.ac.uk>
Add explanatory comment for logging level

Signed-off-by: rsnape <rsnape@dmu.ac.uk>
Add parameters for RHI batch run

Signed-off-by: rsnape <rsnape@dmu.ac.uk>
Add launcher to use VisualVM for performance tuning

Signed-off-by: rsnape <rsnape@dmu.ac.uk>