Remove pointless "Nickname" entry in the contacts

[Amaikokonut]

In initially modifying the old code to make it AW-compatible, a lot of pointless systems were left in place simply because they would be more time consuming to remove. Once things are relatively stable though I'd like to rewrite the way the warp scripts view and use Contacts to eliminate the need for duplicate "nickname" entry. Since Albian Warp's user IDs and Nicknames are one and the same, there's no need for a second field.

This entry is relied on by almost every script that involves checking a contact, so removing it will be kind of tedious and needs to be done carefully, but it should increase both the speed of the scripts and the simplicity of writing future Albian Warp code.

[KeyboardInterrupt]

This is made obsolete by the Switch to ReBabel

[KeyboardInterrupt]

Reopening this, as Rebabel is stripped out of the AlbianWarp Code base and becoms it's own Client implementation/Proxy eventually!