* [AUDIO_EXT,FIX] Initialization of audio subdirectory.
* [DCG_CONTENT,FIX] Use of dcg_repeat//2 i.o. dcg_multi//2 and use of horizontal_line//1.
* [DCG_META,NEW] Added dcg_repeat//2.
* [DIR_INFRA,FIX] Project directory.
* [FLOAT_EXT,SC] Removed float_fractional_part2/2 and float_parts/3. Superseded by MATH_EXT.
* [GV_DOT,FIX] Added determinism.
* [GV_NUMERAL,NEW] Added grammar for GraphViz (DOT language) numerals.
* [INT_EXT,SC] Removed int_parts/3. Superseded by MATH_EXT.
* [MATH_EXT,NEW] Added fractional_integer/2, number_integer_parts/3, and number_sign_parts/3.
* [MATH_EXT,SC] Removed number_parts/3. Superseded by the above.
* [SPARQL_NUMBER,FIX] Superfluous cut.