channel record checkboxes update and reflect database
add realtime to jackd initialisation options
rot_manager tests and manages jack connections, including no connection

rotter still automatically connects first port, but this is then disconnected
when the next checks are performed. This should be fixed, but probably requires
patching rotter. As rotter doesn't restart under normal operations, this is
no great problem.

rot_manager does not yet check for updates to config file.
Fix spelling mistake in error message
Changing channel record status in UI updates channels.xml config file
change menu link from 'channel names' to 'channels'

Now that the channel interface allows control of recording, alongside
naming, commentator and match details, the new link name makes more sense.
rot_manager checks and responds to channel configuration file changes