* Fix #679 (borked reply to `JOIN #chan,\r\n`)
* Replace invalid error parameters with *'s in various places
* Fix PART with no message sending an empty trailing parameter to the channel
* Fix some error responses not getting labeled

Workaround for #661: this makes the `CAP LS 302` line from the default config
fit on a single line, as long as the server name is at most 35 characters.

1. DRY "banner" descriptions of each services
2. `/HELP NICKSERV` now refers the user to `/NICKSERV HELP`, etc.
3. Fix double translation of `textGenerator` output

1. Your own snomasks would be reported as belonging to the other user
2. Prefixes were incorrect

Partially fixed earlier in #467

If you were banned and the ban was only detected when you proxied
(because you were proxying from a DLINE'd IP), you'd get an incorrect
quit message: `QUIT: Bad or unauthorized PROXY command`. This propagates
the correct ban message as the quit line.

Fixes #480

as per discussion in #oragono, these are not sent by other servers