Added stale/unstale checking for controllers
Added reporting
Replaced iterator with indexed loop
Bugfix: Ceiling crisscross.
Bugfix: Rendering thread trainwreck due to pileup of update request
threads.
Created and implemented NAVObjective.Factory
Exitlocation made mutable.
Bugfix: NotifyPositionChanged added, debug report
Experimental adding of tilt.
Kludge: stale checking not quite ready yet.