current canvas. This is useful to export dirty rectangles. Accordingly,
add caca_import_area_from_memory() and caca_import_area_from_file().

split is rendered moot by the plugin system: when enabled, binaries do
not link directly with libX11 or libGL. I hope this is a step towards
more consisteny and clarity.

<cucul.h> will provide the C99 types, even if libcaca has been installed.
  * Rename what's left of "common.h" to "stubs.h".
  * Remove all references to erroneous <inttypes.h> from source files.

a longer name but "mode" really wasn’t appropriate here.

reason to keep a copy of them in the calling program.
  * Deprecate cucul_set_dither_invert(). Inverting a dither's colours is now
    done by setting a negative gamma value.

* Renamed cucul_rotate into cucul_rotate_180.
  * Deprecated cucul_rotate and fix examples accordingly.
  Hope it all makes sense.

* Renamed cucul_*_canvas_frame() to cucul_*_frame() because we bloody well
    know that a frame belongs to a canvas.

of toilet needs it.

* More debugging information in the import/export and font functions.

cucul_export_file() but I'm not sure yet this is a good idea.
  * Use the new import/export API in libcaca.

cucul_import_file().

documentation errors or imprecisions.

a file and a memory area into a libcucul buffer.
  * Changed the cucul_import_canvas() prototype so that it uses libcucul
    buffers instead of simple memory areas.

* Started changing function prototypes so that they return an integer
    instead of void, just in case they might fail.

in all .c files that needed it.

their name, eg. cucul_create() -> cucul_create_canvas() etc.
  * Moved buffer-related functions to cucul/buffer.c.