[Web-cyradm] Added EXPERIMENTAL support for username=emailaddress to SVN

[Cheeto]

Hi John, you are correct, because the auxprop sql plugin does not 
support crypt password by default, you need to use plain.  If you want 
to use crypt you have to patch the sasl auxprop sql code.

John Thomas wrote:
> I struggled a bit with the setup (but this is only a hobby for me).  
> The biggest hurdle is described below.  If someone knowledgeable could 
> confirm that my suggestion is correct and optimal, I would appreciate it.
>
> In the Web-Cyradm conf.php file, the variable $CRYPT needs to be 
> defined as "plain", a change from the default.  Example below:
>
> # Defines if passwords are encrypted or not.
> # Valid Values:
> #  - plain 0 No encription is used
> #  - crypt 1 (shadow compatible encription)
> #  - mysql 2 (MySQL PASSWORD function)
> #  - md5 3 (MD5 digest)
> #$CRYPT = "crypt";
> $CRYPT = "plain";
>