add reply for when user uses .seen on the bot
add reply for when user uses .seen on the bot

craisins/wh2kbot,ddwo/nhl-bot,callumhogsden/ausbot,TeamPeggle/ppp-helpdesk,crisisking/skybot,olslash/skybot,isislab/botbot,SophosBlitz/glacon,df-5/skybot,Jeebeevee/DouweBot,Jeebeevee/DouweBot_JJ15,cmarguel/skybot,rmmh/skybot,elitan/mybot,craisins/nascarbot,Teino1978-Corp/Teino1978-Corp-skybot,andyeff/skybot,parkrrr/skybot,jmgao/skybot