Merge branch 'master' into working_branch
Merge branch 'working_branch' of https://github.com/MiniSongSong/OpenGlobejs into working_branch
add'FragmentOutPuts'
add Context.Clear to display the canvas black.
add first Triangle.
fixed bug 'Can not show Triangle'
add 'VertexBufferAttribute'
Update README.md
Merge pull request #4 from MiniSongSong/working_branch

Working branch