Allow SP installation to be on non-standard ports
    
    When setting up a SP using ipsilon-client-install, there is no
    ability to use a non-standard port.  We should allow a port number
    to be specified that results in the proper URLs in the SP metadata.
    
    This patch adds a --port option to ipsilon-client-install.  This is
    used in the construction of the URLs used in the SP metadata as well
    as in the httpd redirect rules if httpd is being configured.
    
    https://fedorahosted.org/ipsilon/ticket/92
    
    Signed-off-by: Nathan Kinder <nkinder@redhat.com>
    Reviewed-by: Rob Crittenden <rcritten@redhat.com>