ipaddr: IP (and MAC) address manipulation

A library for manipulation of IP (and MAC) address representations.

Features:

• Depends only on sexplib (conditionalization under consideration)
• oUnit-based tests
• IPv4 and IPv6 support
• IPv4 and IPv6 CIDR prefix support
• IPv4 and IPv6 CIDR-scoped address support
• Ipaddr.V4 and Ipaddr.V4.Prefix modules are Map.OrderedType
• Ipaddr.V6 and Ipaddr.V6.Prefix modules are Map.OrderedType
• Ipaddr and Ipaddr.Prefix modules are Map.OrderedType
• Ipaddr_unix in findlib subpackage ipaddr.unix provides compatibility with the standard library Unix module
• Ipaddr_top in findlib subpackage ipaddr.top provides top-level pretty printers (requires compiler-libs default since OCaml 4.0)
• IP address scope classification
• IPv4-mapped addresses in IPv6 (::ffff:0:0/96) are an embedding of IPv4
• MAC-48 (Ethernet) address support
• Macaddr is a Map.OrderedType
• All types have sexplib serializers/deserializers