Fixed xapi commands from initialize, updated wrapper
update terrain system to allow image format height maps, improve quadtree balance speed, harmonize terrain fog and phong fog shaders, hook up fog falloff to scene properties
Merge branch 'development' of https://github.com/adlnet/Sandbox into development
fix annoying problem with alertify choice becoming too large to get to the ok button
fix flipped graphic in cesium terrain
Identified spots for xapi logging
A little more work on xapi logging
Fixed numerous dumb mistakes
error in redirect when not connected to net
Merge branch 'master' into development
Fixed problem with unconfigured mailtools
Added 6 cases of xapi logging

login/logout, world create/delete, and world login/logout
Added publish/unpublish/publish_item logging
Added registration xapi logging
Merge branch 'xapi-logging' into development
fix problem caused by picking sky. Sky should not be pickable
Merge branch 'development' of https://github.com/adlnet/Sandbox into development
make sure that views always include the version number in the root path. Change behavior of navigate mode.