Stasis: Correct blind transfer message generation

This fixes the json object creation format string and key name for the
BridgeBlindTransfer Stasis event allowing it to be published properly.


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/12@420414 f38db490-d61c-443f-a65b-d21fe96a405b
chan_sip: Replace sip_tls_read() and resolve the large SDP poll issue.

Replace sip_tls_read() and sip_tcp_read() with a single function and
resolve the poll/wait issue with large SDP payloads.

ASTERISK-18345 #close
Reported by: Stephane Chazelas
Patches:
      tcptls_pollv4.diff (license #5835) patch uploaded by Elazar Broad

Review: https://reviewboard.asterisk.org/r/3882/
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Merged revisions 420434 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 420435 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/12@420436 f38db490-d61c-443f-a65b-d21fe96a405b