Revert "dns/tcp fix for old ruby versions"

This reverts commit 1b0ca59606d98883360a070b45a3b18eda91b127.
change from using resolv to dnsruby, narrow down results when chaining
bump timeout, return empty Message when timeout hit
bump timeout to ten seconds
change to order not mattering
Merge pull request #1 from jrussek/master

merging various changes back