Ban Old Menu (yeah it could really use a better name)
Collects info from players who have left the server recently and gives the admin a menu from which the admin can auth/ip ban, name+auth+ip are collected and displayed, each ban requires a confirm which will help prevent annoying accidents.
50 most recent, reset on map change, when over 50 the old data gets over written slot by slot, while under 50 oldest first, just a little over 50 and the first few start to get over written.
used menu structure from:
* Vote Kick/Ban Menu
* by WaZZeR
* Thanks to:
* v3x - helped me with the loose indentation error
* xeroblood - for the palyer menu template}
todo: ban server cmd cvar for diff ban systems; unban menu; reduce memory waste; see ip permissions; newest always go first; save to file and load file on init then delete file and write what fits in buffer