Make outgoing_colp=2 misdn.conf port parameter not send redirecting or transfer messages.

If the outgoing_colp parameter is set to not send COLP information, then
it does not make sense to send redirecting or transfer messages announcing
new COLP information that is blocked.  The service provider may supply the
listed number for that line when it passes the messages to the next hop.
Why tell the switch that these events happened when the information is
otherwise suppressed?

Also blocked the number of previous redirects that may have occurred to
calls going out the port when outgoing_colp is 2.

Follow on to JIRA ABE-1853.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@202755 65c4cc65-6c06-0410-ace0-fbb531ad65f3