fix avatar choice dialog
Merge branch 'master' of https://github.com/adlnet/Sandbox
add cert chain for FireFox
Merge branch 'v0.7_candidate'
warn anonymous users when attemping to play/pause a world they don't own, fix crash on server
fix login button after users chooses to continue as guest
fix a few client side minor exceptions, fix major server crash when loading landing page for world with anonymous client, remove rightclick menu when playing
make console show instances command work properly
finish todo on 3D upload, set the title and set the artist name