Merge branch 'stable-3.2'

* stable-3.2:
  Set Gerrit to 3.2.7
  Set Gerrit to 3.1.12
  Set Gerrit to 3.0.16
  Download plugins from archive-ci
  Set Gerrit to 2.16.26
  Set Gerrit to 3.2.6
  Set Gerrit to 3.1.11
  Set Gerrit to 3.2.5.1
  Set Gerrit to 3.0.15
  Set Gerrit to 2.16.25
  Set Gerrit to 3.1.10
  Set Gerrit to 3.2.5
  Set Gerrit to 3.2.4
  Download uploadvalidator from its own stable-3.2 branch
  Set Gerrit to 3.1.9
  Set Gerrit to 3.0.14
  Set Gerrit to 2.16.24
  Set Gerrit to 2.16.23
  Set Gerrit to 3.0.13

Change-Id: I0ce8da8445f529af9bcf6e78ce2537f1b2a840c4