Update README.md
get rid of lib/x11 nested subdirectory, lib/x11 -> lib
createClient callback signature now (err,display)
fix path
version bump
GenTextures, TexCoord2D, BindTexture, TextureParameterf, TexEnvf
Add ConfigureWindow core request

- Update requests based on ConfigureWindow to use the new implementation.
- Add sibling field in valueMask.ConfigureWindow.
- Add new tests.