Updated bindings

These bindings were generated using rust 0.9, the most recent
rust-bindgen as of 10 Jan 2014, ImageMagick 6.8.8-1, and Clang 3.5

After generating the bindings, all functions using a va_list as a
parameter must be removed, as rust does not support this.
Updated project layout

Hopefully this is closer to the accepted standard
Project layout cleanup

Still trying to get things organized neatly, but this is close!
Library compiles, samples still failing
Make the README.md honest again
Minor changes, trying to get the procs working
The thumbnail sample now compiles