David Hill 320ecea6a0 addrmgr: Do not bias toward fresh addresses.
This change was suggested as Countermeasure 2 in Eclipse Attacks on
Bitcoin's Peer-to-Peer Network, Ethan Heilman, Alison Kendler, Aviv
Zohar, Sharon Goldberg. ePrint Archive Report 2015/263. March 2015.

This mimics Bitcoin Core commit
f68ba3f67bd500a64fb8932c6b41924ddc31d76f
2015-04-14 11:21:57 -04:00
..
2015-04-06 11:45:57 -04:00