Open
Description
In order to deliver messages to LPMC members who are not present, I want to be able to tell percival to send a message to someone in the future as follows:
!tell <username> <message>
Percival should then tell the user, upon rejoining the channel, that there are messages waiting for him, and they may be retrieved by doing:
!messages
At which point Percy will private-message all of my messages to me.