libunistring: update to Unicode 8.0.0 * lib/gen-uni-tables.c (SIZEOF): New macro. (output_numeric): Increase the maximum number of fractions from 128 to 160. Increase the level3 value width from 7 bits to 8 bits. Use SIZEOF instead of a hard-coded integer. (output_blocks): Decrease the cut-off threshold from 0x30000 to 0x28000. (fill_blocks): Increase the maximum number of blocks from 256 to 384. Use SIZEOF instead of a hard-coded integer. (get_lbp): Adjust to new characters added in Unicode 8.0.0. * lib/unictype/numeric.c (uc_numeric_value): Adjust the level3 value width. * lib/unilbrk/lbrktables.c (unilbrk_table): Implement LBP21b and a new case added to LBP22. * lib/uniwidth/width.c (nonspacing_table_data): Add U+08E3, U+A69E, U+FE2E..U+FE2F, U+111CA..U+111CC, U+11300, U+115DC..U+115DD, U+1171D..U+1171F, U+11722..U+11725, U+11727..U+1172B, U+1DA00..U+1DA36, U+1DA3B..U+1DA6C, U+1DA75, U+1DA84, U+1DA9B..U+1DA9F, and U+1DAA1..U+1DAAF. * tests/uniwidth/test-uc_width2.sh: Same updates as in lib/uniwidth/width.c. * all generated files under lib/uni* and tests/uni*: Regenerate.