rearrange chanserv-level ban/kick messages; change wording on authentication cookie...

rearrange chanserv-level ban/kick messages; change wording on authentication cookie email, implement old tried2reg patch

* chanserv ban/kick messages are now displayed as "(name) message" as opposed to what they were, which was "message (name)"; this was done to remove irregularity with how it was in some parts of the code.

* at semi-popular request, wording in initial registration emails has been changed to explain that COOKIE should not be used more than once

* implemented old 'tried2reg' patch - you may only use /msg authserv register once per session (this was not the case before, which was apparent with email registrations)

git-archimport-id: srvx@srvx.net--2004-srvx/srvx--devo--1.3--patch-61