Change nm/hr to KTS in data bar.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@2368 822214bb-dcf7-4c8d-a767-17ae0fb20d88
App update.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@2369 822214bb-dcf7-4c8d-a767-17ae0fb20d88