MFC: rev. 1.162
MFC: rev. 1.162

  Back out rev. 1.161 (1.157.2.2) and
  switch back to optimized TCP options ordering.

  A lot of testing has shown that the problem people were seeing was due
  to invalid padding after the end of option list option, which was corrected
  in tcp_output.c rev. 1.146 (1.141.2.4).

Thanks to:              anders@, s3raphi, Matt Reimer
Thanks to:              Doug Hardie and Randy Rose, John Mayer, Susan Guzzardi
Special thanks to:      dwhite@ and BitGravity
Discussed with:         silby

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