Run the right executable on OSX

Also, fgRoot appears to be required
Use flightgear cmd line arg to launch terrasync

FlightGear now supports automatically launching terrasync with a
command-line arg, so we don't need to launch it ourselves in a separate
process.
Add context click to set home

Allow right-click in map to set home
Fix port 49000 problem with bind; add debugging

remote port was being overwritten by setRemoteHost after being set with
mav ID
Clarify names of some member variables
Decrease qDebug noise
Allow hilDock to be shown in other views