[turba] __type attribute for LDAP

[Amith Varghese]

> attributetype ( 1.3.6.1.4.1.13040.1.2.4.16
>         NAME 'turbaMembers'
>         DESC 'Members of a Turba Group'
>         EQUALITY caseIgnoreIA5Match
>         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{4000} )
> 
> I made it "{4000}" since that is the size of the members field provided in
> the
> PostgreSQL database scripts.

what's the limitation of LDAP (specifically OpenLDAP)?  Or does it depend on
what backend you use for OpenLDAP?  If possible it would be nice to not have any
limit, but i'm not sure if that's possible.

> Is all of the schema for all the horde projects stored in the central
> horde.schema file?

There is some info in the docs direction (the file LDAP) that has some free/busy
info.  That probably should be added to the horde.schema file - which i'll try
do sometime :)