o Minor features (accounting):
    - Added two modes to AccountingRule in torrc for
      limiting just input or just output.
      Closes ticket 15989; patch from "unixninja92".

  o Minor bugfixes (accounting):
    - The max bandwidth when using AccountRule sum
      is now correctly logged. Fixes bug 18024; bugfix on 0.2.6.1-alpha.
      Patch from "unixninja92".