tree cbc4534157cc4d447ae26bede1fa71f7f3c04cbc
parent a69bbb2c339e812f5b6697ea47c5f08ce18b21d8
author Christopher Lane <lanechr@google.com> 1464305493 -0700
committer Christopher Lane <lanechr@google.com> 1465482644 -0700

Move some common gerrit logic into the gerrit package

Moves some of the MultiPart cl handling and the cl log diffing
logic out of devtools/presubmit so it can be used separately.

MultiPart: 1/2
Change-Id: I8a76c29de194d0849cbeb4f1fcad068b527a074d