Release 1.16 with, making libbsd mandatory

What's Changed

• Sync in latest changes by @ofalk in #52
• IPv6 support by @stsi in #56
• Fixed some potential buffer overflows #41 by @qingkaishi in #58
• configure: Use AC_CONFIG_HEADERS instead of deprecated AM_CONFIG_HEADER by @jer-gentoo in #59
• Don't try to convert hostnames to addresses in addr_pton() by @dwmcrobb in #61

New Contributors

• @stsi made their first contribution in #56
• @qingkaishi made their first contribution in #58
• @jer-gentoo made their first contribution in #59
• @dwmcrobb made their first contribution in #61

Full Changelog: libdnet-1.14...libdnet-1.16