rebrand as sillyircd
Allow $$* as target for globals.
Add ircd-seven like "Disconnected by services"
m_part: Add quotes around part reason

This is a practice already used by some networks including freenode. It
makes it possible to distinguish user part messages and forced parts
such as /remove.
Add umode +C, which blocks CTCPs to anyone with it set.

ref: Elemental-IRCd/elemental-ircd@ccfc9b5
Add umode +V, which blocks invites to anyone with it set.

ref: Elemental-IRCd/elemental-ircd@854f6bd
Add umode +I, which blocks killing opers with it set.
Make the target user's modes show up in whois.