Fixes: #38 (CVE-2018-20546)
Fixes: #39 (CVE-2018-20547)

Fixes: #36 (CVE-2018-20544)

it, just call caca_set_dither_color(d, "fullgray") on the dither object.

are almost there.

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.

far better for error checking.

completely breaks compatibility with previous versions of libcaca on
    64-bit systems.

prototypes. As they are equivalent, this does not break the ABI.

<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.

* Implemented missing cucul_get_dither_contrast().

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.

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

cucul_set_color() and cucul_set_truecolor() under the new names
    cucul_set_color_ansi() and cucul_set_color_argb().
  * Renamed cucul_get_color_name() into cucul_ansi_to_str().

functionality into cucul_set_attr().
  * Add cucul_ansi_to_attr() and cucul_argb_to_attr().
  * Rename CUCUL_COLOR_* to CUCUL_*.

with cucul_set_attr_ansi(). Old application will still compile (but issue
    a warning) and run, though.

thanks to Sean D'Epagnier.

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.

better performances.

arguments are at least 32 bits.

in all .c files that needed it.

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.

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

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.

remove redundencies in the Doxygen documentation.

really portable, and Visual Studio complains when they are not explicitely
    cast.