multiple OTM instances: replaced using a fixed port for local OTMServer with a variable one

We need to execute OTM multiple on the same host (against different hosts) for automated testing.

The patch at http://openmsp.peppercon.de/opentestman/patches/r2885/080801.1.DynamicServerPort.patch replaces using the fixed port 65530 with variable ones. The "OTMServer" decides automatically which free port it can use and gives that information to the "javawrapper" by a text file.

PLEASE review that patch and apply it to the trunk immediately so we can serve efficient automated tests.