drivers no longer need to access the cv->refcount private member
    and __cucul_set_canvas_size() is no longer needed.

functions to access its real data. This is a big API change that will
    break your software, sorry :(

when meaningful, removed deprecated bindings.

+ Renamed the dlls so that the C# versions do not have the same name
      as the C DLLs on Win32. It's now "cucul-sharp.dll", mimicking GTK#.
    + Renamed namespaces: "using Cucul" instead of "using libCucul".
    + Renamed the Cucul class into CuculCanvas to avoid namespace/class
      name collisions.
    + Renamed old-fashioned "kk"/"qq" names into "dp"/"cv".

C mode, "benign redefinition" of macros...).

collisions due to symbol mangling.

* Manually export private libcaca symbols.

http://libcaca.zoy.org/manual/libcaca-ruby.html).

* Add an empty doxygen.css file.