Merge branch 'stable-2.8'

* stable-2.8:
  Update cloud storage console URL in artifact deployment instructions
  Fix download link in 2.8 release notes
  Set version to 2.8
  Update plugins to latest revisions
  Fix broken formatting in 2.8 release notes
  Fix broken formatting in config-gerrit documentation

Conflicts:
	Documentation/config-gerrit.txt
	VERSION
	gerrit-plugin-archetype/pom.xml
	gerrit-plugin-gwt-archetype/pom.xml
	gerrit-plugin-gwtui/pom.xml
	gerrit-plugin-js-archetype/pom.xml
	plugins/commit-message-length-validator
	plugins/cookbook-plugin
	plugins/replication
	plugins/reviewnotes

Change-Id: I4994dac5860726e0257e90ce97e56a26a2376637