[ipv6calc-announce] Release 3.1.0 - Enhancements

[Peter Bieringer]

Hi all,

version 3.1.0 was released, already available as preview on
- Fedora Rawhide
- Fedora 33, 32
- EPEL 7, 8

Minor Features:
  * Improve revnibble handling (TLD+NLD given given -> prefix, missing
-> suffix), add related online help
  * add support for compressed IPv4 addresses, like 10/8 (contributed by
@grayed)

Fixes:
   * Improve autodetection of nibble strings, add additional test cases,
triggered by #19

General:
  * internal databases: update

Visit the release page
<https://github.com/pbiering/ipv6calc/releases/tag/3.1.0> to download them.

Regards,
	Peter