MB-100 Revert "MB-100: killed addr_util.erl"

This reverts commit 1f0b63985bb24ad4f3ab06a186913348a2e930b9.

It's still needed for upgrade on Windows.

Change-Id: I171d6e03ab1895ea96916c1bfdd629174f761d2e
Reviewed-on: http://review.couchbase.org/26594
Tested-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>