[dtaht/ceropackages-3.3] b6a6c4: Simplify the ECN handling a bit

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dtaht/ceropackages-3.3
  Commit: b6a6c471505133302001cac052d542e46804e606
      https://github.com/dtaht/ceropackages-3.3/commit/b6a6c471505133302001cac052d542e46804e606
  Author: Sebastian Moeller <moeller0 at gmx.de>
  Date:   2013-12-16 (Mon, 16 Dec 2013)

  Changed paths:
    M luci/luci-app-aqm/files/aqm-cbi.lua
    M net/aqm-scripts/files/usr/lib/aqm/functions.sh
    M net/aqm-scripts/files/usr/lib/aqm/run.sh
    M net/aqm-scripts/files/usr/lib/aqm/simple.qos
    M net/aqm-scripts/files/usr/lib/aqm/simplest.qos

  Log Message:
  -----------
  Simplify the ECN handling a bit

The first iteration of handling ECV individually per transfer direction
was overly baroque. Make the code more direct and readable.