Merged revisions 334064 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/10

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  r334064 | mnicholson | 2011-08-31 11:31:00 -0500 (Wed, 31 Aug 2011) | 4 lines
  
  only alter the gateway_timeout when attching the gateway to a channel
  
  ASTERISK-18219
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@334067 65c4cc65-6c06-0410-ace0-fbb531ad65f3