Add "!" modechar for admin

[omnicons]

For the odd network out that uses it!

[maxpoulin64]

23:10   Dusk    Is there any plan to support  alternate modechars here btw?
23:11   +Max-P  What's that?
23:11   Dusk    well the standard set of mode characters are ~&@%+
23:11   +Max-P  Ah, that
23:11   Dusk    but as a person who uses and helps run the elemental test network; elemental uses ~!@%+

As I expressed on IRC, we still have no way of knowing what names are attached to those modes, but since it's the only difference I think it's fine to add this one to our hardcoded list. 👍

[dgw]

Oh how I long for PREFIX parsing.

[maxpoulin64]

@dgw: we do parse PREFIX. This is purely for the fancy names on the user list.

[dgw]

Hmm… My mistake. I guess there's no ISUPPORT value for those.

[astorije]

I think I'm 👍, but I would prefer to have @xPaw's input on this.

[xPaw]

Yeah I don't know where ! came from. I would like to see at least a couple of networks using it before merging this.

[astorije]

@xPaw, I think the OP (or someone else) mentioned 2-3 networks that need this: the elemental ircd test network, ponychat, and another one I forgot.
What do you think?