Description of problem:

From Ted Ross email: "Changes affecting docs" 7 Feb 2008

The "--mgmt" option has been renamed "--mgmt-enable" to remove an ambiguity seen 
on RHEL5 (boost 1.33).

A new option "--data-dir" has been added that specifies a directory for 
persistent storage of configuration and other data.  It defaults to 
/var/lib/qpidd (which will be created when installing the RPM).  If --data-dir 
"" is used (i.e. no data directory), then persistent storage will be disabled.

The "--store-directory" option is still in place but it no longer has a default 
value.  If it is not specified, the store uses the --data-dir directory for the 
store files.  If --store-directory is omitted and --data-dir is set to "", the 
broker will fail to start up.

-Ted