Clear the high order bit from the destination call number before sending.

Clear the high order bit from the destination call number before sending.

send_apathetic_reply takes the incoming frame's source call number as the
destination call number for the outgoing frame.  If the incoming frame was a
full frame, then the high order bit of the source call number is set and will be
interpreted as a retransmit when sent back out as the destination call number.
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Merged revisions 355182 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 355183 from http://svn.asterisk.org/svn/asterisk/branches/10

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@355184 65c4cc65-6c06-0410-ace0-fbb531ad65f3