Navigation Lib - Fixes for pending waypoint navigation events

Hi there,

So devs, who's most familiar with the Navigation lib?  I debuged some problems I was having yesterday and found a couple code issues related to deferred waypoint creation and pending navigation events.  I want to share a couple small tweaks to the following files which have solved my problems:

WaypointHandler - add 1 line, remove 1 line

DestinationRegistry - change 1 line

EnterAndExitInvoker - change 1 line

Send me a message and we can chat via e-mail or IMs.  Or I can just dump everything here in the forums if you'd prefer.

Thanks.