[Dovecot] Patch: support URLAUTH, BURL, CATENATE

[Timo Sirainen]

On 9.4.2010, at 14.24, Mike Abbott wrote:

> Apple invites the dovecot developers and contributors to port this patch
> to Dovecot-2.0.  Dovecot-2.0 has not been stable enough for us yet to
> make it the base of our development.

Ported: http://hg.dovecot.org/dovecot-2.0-urlauth/

I only fixed merge conflicts and updated to use v2.0 APIs. It compiles, but I didn't try to run it.