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Import "new" IPDB development:

March 2004 through end of August 2004

Changes include:

-> Entirely new method of allocating IP space; which should

hopefully reduce the amount of messiness in allocations.

-> IP address processing provided by NetAddr::IP rather than

homebrew code

-> Change DB to PostgreSQL to eliminate some of the problems

caused by using MySQL, and to gain native RDBMS support for
IP addresses.

-> Using NetAddr::IP and Postgres allows (eventually, with

PG >= 7.4) IPV6 without any code changes. In theory.

-> Logging so that if someone makes a change that turns out

to have been wrong for some reason, Blame Can Be Assigned.

-> General code cleanups (split IPDB.pm from CommonWeb.pm,

for instance)