Minor updates to CR presentations.
Adding tasks to do during the code camp.
Added non-ES2 discussion.
Update notes.md
Update notes.md
Update notes.md
add my presentations
Added CR's notes.
Updated notes.
Updated gl-cl demo.
Updated cl-gl demo to have a single GPU buffer shared by OpenGL (VBO) and OpenCL. There is no more memory copy on the GPU between the GL and CL buffer.