Merged revisions 299194,299198,299220 via svnmerge from

Merged revisions 299194,299198,299220 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r299194 | mnicholson | 2010-12-20 14:45:38 -0600 (Mon, 20 Dec 2010) | 6 lines

  Respond as soon as possible with a 202 Accepted to refer requests.

  This change also plugs a few memory leaks that can occur when parking sip calls.

  ABE-2656
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  r299198 | mnicholson | 2010-12-20 15:00:44 -0600 (Mon, 20 Dec 2010) | 2 lines

  Remove changes to via processing that were not supposed to go into the last commit.
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  r299220 | mnicholson | 2010-12-20 15:21:39 -0600 (Mon, 20 Dec 2010) | 4 lines

  Use ast_free() instead of free()

  ABE-2656
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@299242 65c4cc65-6c06-0410-ace0-fbb531ad65f3