Fixed two regressions in avatar position
Fixed two regressions in avatar position

- avatars not sent on login until avatar movement or camera changes
(InitialDataSent needed to be set before sent, so now it's
InitialDataReady)
- child agent update NO_POSITION test got inverted in the "nothing"
change. Brain fart, got the == and != backwards in the conversion to
CompareTo. Scrap that, it's harder to read anyway.

InWorldz/halcyon,zwagoth/halcyon,emperorstarfinder/halcyon,InWorldz/halcyon,kf6kjg/halcyon,kf6kjg/halcyon,kf6kjg/halcyon,zwagoth/halcyon,zwagoth/halcyon,kf6kjg/halcyon,zwagoth/halcyon,InWorldz/halcyon,zwagoth/halcyon,emperorstarfinder/halcyon,emperorstarfinder/halcyon,InWorldz/halcyon,InWorldz/halcyon,InWorldz/halcyon,InWorldz/halcyon,emperorstarfinder/halcyon,kf6kjg/halcyon,emperorstarfinder/halcyon,zwagoth/halcyon,kf6kjg/halcyon,kf6kjg/halcyon,kf6kjg/halcyon,InWorldz/halcyon,zwagoth/halcyon,emperorstarfinder/halcyon,zwagoth/halcyon,kf6kjg/halcyon,emperorstarfinder/halcyon,InWorldz/halcyon,zwagoth/halcyon