Hook up prefs pages with bindings.
Explicit apply for our prefs.

Not sure yet why the hasUnappliedChanges binding isn't working.
Short-hands for some x264 parameters.
Pop up buttons for encoder presets.
Have librtmp work with a copy of the URL.

So we can reconfigure during the connection.
Meep.
Remove halt states, replace with a bit flag.
Fix value transformer paths.
Deal with new state handling in frontend.
Prevent SIGPIPE on connection.
Fix connection locking to not crash on disconnect.
Replace P1ImageFromLogLevel with a model method.
Model code to restart objects.
Let model know settings target clears error.