just 2 digits
cmake: set `rpath` of CLI frontend on macOS install (ticket #346,
props Hagen Röwer)
cmake: make uninstall: update to use `-E rm` if available, warn
rather than fatal error if fail to remove, note if leaving
"/zint" directory unremoved (i.e. "lib/cmake/zint")
library: de-duplicate errtxt no.
test suite: update BWIPP to latest
test suite: test_bwipp: enable & fix dotcode random test
test suite: fuzz: gen_corpora fuzz_data 1st -> 2nd
bmp/emf/ps.c: allow for foreground colour in ULTRA
bmp/gif/pcx.c: allow for BARCODE_STDOUT (fflush/fclose)
emf.c: hexagon rotation field not used; dont't use float index in font loop; Windows stdout binary mode
png.c: remove unused 8-bit; simplify libpng error handling and fclose outfile on error
ps.c: fix buffer overflow on colour_to_pscolor() CMYK
tif.c: fix BLACKISZERO indexes
CODE39: simplify check digit setting
reedsol.c: rs_uint_init_gf() log/alog tables must be zeroed
ZBarcode_Encode: debug: fix access out-of-bounds on non-NUL-terminated source if length < 10
manual.txt/zint.h: document NUL-terminated strings
tests: cover further cases for output (bmp/emf/etc), eci/gb18030/gb2312/sjis, reedsol, AZTEC, CODE39
