v1.3.0

• New: irr-as-set command, to build the route server AS-SET object for IRR databases.

  This new command can be used to build the AS-SET RPSL object that describes the ASes and AS-SETs of route server clients. Details and usage: https://arouteserver.readthedocs.io/en/latest/USAGE.html#irr-as-set

  Related: issue #49