Ensure that a call is immediately torn down if a Session-Expires value
received in a 200 OK is less than the local Min-SE. This also prevents
Asterisk from allowing calls with Session-Expires below the
RFC4028-mandated minimum (90s).
(closes issue ASTERISK-20653)
Review: https://reviewboard.asterisk.org/r/2237/
Patch-by: Kinsey Moore
git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@377623 65c4cc65-6c06-0410-ace0-fbb531ad65f3