[Swan-commit] Changes to ref refs/heads/master

[D. Hugh Redelmeier]

New commits:
commit 5618b2c31d6a80a3ffa2901c024e9db5448c7d9d
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Sat Jul 14 08:59:54 2018 -0400

    pluto: tidy aspects of IKEv2 proposal handling
    
    - clarify that COOKIE_SIZE is also the v2 IKE SPI size
    
    - replace magic numbers for v2 IKE SPI size and ESP SPI size
    
    - check that protocol IDs are OK in non-IKE context
    
    - clarify that "MUST be zero" applies to the SPI length
      and not the SPI itself
    
    - eliminate redundant tests for invalid SPI sizes
    
    - eliminate some casts