Generalize the concept of the Bluetooth starter, extract base class
BaseCommunicationStarter that can be used to start a serial communication
without further resources (listener) as well. Introduce convenience
functions for both types.
Note: This will only work for COM-ports that are not used otherwise
by the operating system.
Prepare trk::Launcher to deal with a shared trkdevice.
Add encapsulation for the rfcomm listener process and helper
classes for prompting the user to connect the Bluetooth
device. Add a command line prompt to the trklauncher test.
