Summary: Missing information about cyrus-sasl-plain package

Description of problem:
Messaging Installation Guide and Management Console Installation Guide assumes that cyrus-sasl-plain package is installed on RHEL server. It was true with RHEL5, because it installs 'Base' group, but not the case in RHEL6 with 'Minimal install' [1].

There are however installed other necessary packages [2]:
cyrus-sasl
cyrus-sasl-lib

Therefore user will configure Messaging [3] and Management [4] with provided binaries in documentation: /usr/sbin/saslpasswd2, /usr/sbin/sasldblistusers2
and they are part of cyrus-sasl-lib so configuration will go smoothly. The only problem will be, that it won't work with SASL Plain Authentication that is described in documentation examples and is needed for correct cumin operation.

When this happens, user get after login to cumin message:
---
This console is not connected to any brokers and as a result
  has no management data to display.
  To connect, set the brokers configuration parameter in
   the [common] section of the config file located at /etc/cumin/cumin.conf. or ~/.cumin.conf
  [common]  brokers: broker1.server.com,broker2.server.com
  Without a user-specified setting, cumin looks for a broker
  at localhost:5672.  If you wish to use this
  configuration, make sure there is a broker with QMF enabled running
  at this address.
---
And in qpidd log we can see:
qpidd[1572]: 2011-10-05 16:37:39 warning Client closed connection with 501: Desired mechanism(s) not valid: PLAIN (supported: ANONYMOUS) (qpid/client/ConnectionHandler.cpp:250)
---

As you can see below, the only way how to get this package to the system is:
1) Install group Base (not in Minimal installation)
2) Install any package requires needs cyrus-sasl-plain
3) Manually wisely install cyrus-sasl-plain

[root@rhel6 temp]# yum groupinfo * | grep -e Group: -e cyrus-sasl-plain | grep -B 1 cyrus-sasl-plain
Group: Base
   cyrus-sasl-plain
[root@rhel6 temp]# repoquery --whatrequires cyrus-sasl-plain
cyrus-sasl-plain-0:2.1.23-8.el6.i686
cyrus-sasl-plain-0:2.1.23-8.el6.i686
libpurple-0:2.7.9-3.el6.i686

Proposed action (prioritized):
1) add cyrus-sasl-plain as dependency to cumin package
2) describe in documentation that cyrus-sasl-plain has to be installed

Version-Release number of selected component (if applicable):
RHEL 6.1

How reproducible:
100%

Steps to Reproduce:
1. Install RHEL6.1 with 'Minimal' option [1]
2. Install and configure cumin + qpid
3. Login to cumin and go to overview page
  
Actual results:
cyrus-sasl-plain isn't mentioned in documentation and in one of MRG packages dependency

Expected results:
cyrus-sasl-plain should be rpm dependency of cumin (or documented accordingly)

Additional info:
[1] http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/s1-pkgselection-x86.html
[2] Bug 593309
[3] http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_MRG/2/html/Messaging_Installation_Guide/chap-Messaging_Installation_Guide-Authentication_and_Authorization.html
[4] http://docs.redhat.com/docs/en-US/Red_Ha