[cvsnt] Latest Updates

[Tony Hoyle]

cvsnt 2.0.0rc5

* Make history module check case insensitive
* Support 64bit time_t in history
* Rewrite -d handling.  It's becoming a FAQ that client mode and server mode
behave differently with the -d option... Fixing it required some serious
surgery to the client/server protocol, so this one will need a bit of testing.
If either the client or server is pre-rc5 then it'll work the old way.  If it
gives too many problems I'll rip it out again.

Still on course for releasing at the end of the week provided this extra work
hasn't broken anything.

Tony