Change the numerics used by usermode +s
The current ones cause issues with some clients as they are the same as the
ones used by the Charybdis quiet lists.
ChanServ: Add command aliases and a help text
Merge pull request #66 from Heufneutje/fix-umode-s

Change the numerics used by usermode +s
ChanServ: Make the ChanServ user the mode setter and override channel permissions
Merge pull request #65 from Heufneutje/feature-chanserv-tweaks

Various tweaks to ChanServ