CFFI 0.10.0 released!

Hello,

It's been a while since CFFI's previous release, almost two
years. During this period, a lot of development work happened and lots
of cool new features were implemented. Here's a brief highlight of some
of the important changes:

    * foreign string encodings using Babel. UTF-8 becomes the default
      encoding for foreign strings.

    * improved foreign type system that takes better advantage of CLOS
      features.

    * emulated :long-long types on Lisps whose native FFI doesn't
      support these types.

    * integrated a groveller inspired by SBCL's sb-grovel.

    * support for the stdcall calling convention.

    * removed finalizer-related code in favor of trivial-garbage.

    * function and variable lookups can now be linked to a specific
      foreign library instead of assuming a global namespace.

    * the cffi-features package has been deprecated in favour of
      trivial-features. CFFI-specific features are now interned in the
      CFFI-SYS package.

    * dozens of bug fixes and minor enhancements.