updated gltf loader and three.js, solved issues with too many xhr request for glsl sources
add some content to library, fix bug with scenes expecting anonymous users but user is already logged in
Merge branch 'development' of https://github.com/adlnet/Sandbox into development
fix the matrix decomp that populates the 'scale' boxes
update to r68. Seems ok
Merge branch 'development' of https://github.com/adlnet/Sandbox into development
merge in gltf work