`gs1_verify()` by checking length before `to_int()`, ticket
#300 (#11), props Andre Maute
CODEONE: fix out-of-bounds crash for Version T by upping buffer
size to same as for A to H, ticket #300 (#12), props Andre Maute
GS1_128_CC: fix divide-by-zero crash in `calc_padding_ccc()` by
allowing for min linear width 68 in `cc_width` calc, ticket #300
(#13), props Andre Maute
BWIPP: update `bwipp_dump.ps` to latest version, update
`gen_gs1_lint.php` to accommodate `req` "+"
PDF417: change `liste[]` int -> short to lessen stack usage
Some variable name and code fiddlings