Using a local event loop to wait for Omni-Rig to initialize has caused
issues elsewhere, reverted to simple waits in teh hope that Omni-Rig
initializes promptly.
RIGCTRL is defined as a log channel for rig control messages and the
appropriate logger is made available to children of the Transceiver
class. Use Transceiver::logger() to access the logger.
Switched existing rig control QDebug messages to Boost logging.
