Merge branch 'stable-3.1'

* stable-3.1:
  Rely on Checks plugin ONLY for build validations
  Do not use Jenkins pipeline default checkout
  Adapt Jenkinsfile to the new project name and build

Change-Id: I18d287b8279088d6d2493e2763245873ca68b6f6
diff --git a/README.md b/README.md
index 74ba043..876d49b 100644
--- a/README.md
+++ b/README.md
@@ -5,12 +5,12 @@
 
 Requirements for using this plugin are:
 
-- Gerrit v3.1 or later
+- Gerrit v3.2 or later
 - Apache Zookeeper v3.4 or later
 
 ## Typical use-case
 
 The global ref-db is a typical use-case of a Gerrit multi-master scenario
 in a multi-site setup. Refer to the
-[Gerrit multi-site plugin](https://gerrit.googlesource.com/plugins/multi-site/+/stable-3.1/DESIGN.md)
+[Gerrit multi-site plugin](https://gerrit.googlesource.com/plugins/multi-site/+/master/DESIGN.md)
 for more details on the high level architecture.