Changes in the webalizer-asn code

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2.0 changes from 1.3b  (msteinacher@init7.net)
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Incompatible changes:
  o Command line options '-b' (ASN without DNS support), '-O' (# top ASNs),
    and '-Z' (Suppress ASN graph) conflict with new options in webalizer
    2.20-01. Disabled these command line options -> use options 'ASNWithoutDNS',
    'TopASNs', and 'ASNGraph' in config file.

Improvements:
  o Updated the original webalizer code to version 2.20-01. This enables IPv6,
    GeoDB/GeoIP, and other things (see CHANGES for more information). 
    
  o Implemented IPv6 support. However, IPv6 is currently not supported by the
    AS number database file format.

  o Missing AS numbers are now listed as 'n/a (no IP)' (unresolvable hostnames),
    'n/a (IPv6)' (missing IPv6 support in ASN DB), and 'n/a' (other reasons).

Fixes:
  o Removed URLs for missing AS numbers.

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1.3b changes from 1.2b  (msteinacher@init7.net)
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Improvements:
  o The additional tool asndb-reader was extended to be able to process
    files containing one IP address per line. With this feature you can 
    query the AS numbers for list of IP addresses very fast.

Fixes:
  o Fixed URL for link to radb.net

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1.2b changes from 1.1a-1  (msteinacher@init7.net)
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Improvements:
  o New ASN DB (version 3): webalizer-asn is now using the Alligator
    database format generated by the Piranha/Alligator BGP route collector
    (http://www.netlantis.org).

  o AS numbers are now also included in the seperate HTML file for the sites
    ("View All Sites")

  o A separate HTML file can be created with all AS numbers ("View All AS
    Numbers"). Added Option 'AllASNs' to enable this.

  o The AS numbers can be dumped to a tab delimited file. Added Option
    'DumpASNs' to enable this.

  o A warning message will be printed if the ASN DB is older than 31 days.

  o Added a script to download and update the ASN DB file via a cronjob.

Fixes:

  o Fixed some minor bugs.

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1.1a-1 changes from 1.1a  (msteinacher@init7.net)
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Improvements:
  o Supports improved ASN-DB version 2.

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1.1a changes from 1.0b-1  (msteinacher@init7.net)
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Improvements:
  o Not using (unreliable) whois lookups anymore. AS number lookups are now
    done using a database provided by NETLANTIS. thanks to Pascal Gloor.

Fixes:
  o Fixed some minor bugs.

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1.0b-1 changes from 1.0b  (msteinacher@init7.net)
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Fixes: 
  o Fix compile problem on FreeBSD (some includes). Thanks to Pascal Gloor.

  o Bugfix in ASN cache. Now the most specific prefix will be used.
    Thanks to Ueli Heuer.