Staff can now PM admins blocking PMs
Also improve error message when PMing admins with blockpm on.
Fix crash in previous commit
ipbans.txt now supports CIDR format
This introduces a new file cidr.js, which handles matching CIDR IP
blocks. It replaces our dependency on node-ip.

The old proxy IP system is also moved to cidr.js.
Added |tc| and the like for correct time in replays
It practically saves the time in a separate var for each log item in order to calculate the delta time
Fixed a lingering change which should have been removed earlier
Prunes logTimes together with log now
Merge pull request #349 from Quinella/chattime

Added |tc| and the like for correct time in replays
Support new autoconfirmed user status
Autoconfirmed users are users whose accounts existed for more than one
week and who have played at least one rated battle.
Allow !dice to be used in the lobby
Fix crash with autoconfirmed setting
UU suspect test enters second phase
Implement /modchat autoconfirmed