test for the <caca0.h> emulation layer.

which case it is massively useless.

* Code enhancements in the ncurses driver.
  * Added a comment to explain why slang has a higher priority than ncurses.

from an alternate directory (they failed to find common.h).

with "utf8".

caca_set_display_time() and caca_get_display_time() for consistency.

int which shall be used as an UTF-32 character. We do not have any casting
    problems due to the signedness of chars because all characters were
    ASCII (ie. <= 0x7f) beforehands.

shaded glyphs.

* Use UTF-8 output in test/text.c instead of ANSI.

be read by other programs.

it will eventually evolve into something better.

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.

in all .c files that needed it.

from some systems.

* Added a test for textfile loading.

and background colours to clear the screen.

cucul_import_canvas().
  * Renamed cucul_create_export() into cucul_export_canvas() for consistency.

now x/y/width/height instead of x1/y1/x2/y2. Avoids unnecessary +1/-1
    computations.

values between 0 and 9 (used to be 0 and 10). Updated documentation
    accordingly.

choose the background colour.

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

* Renamed canvas handle variables from "c" to "cv". Eh ouais mon gros.

list of available formats. Also added a few truecolor blocks to the test.

such as cucul_dither_t instead of struct cucul_dither.
  * Made cucul_buffer_t an opaque structure and implemented the two getters
    cucul_get_buffer_data() and cucul_get_buffer_size().
  * Documented all missing functions and function parameters.

* Fixed font selection through cucul_font_load().
  * Added a bigger 10x19 bold font.

* Removed ugly hooks from test/font.c.