QA: BWC: 2.1

'org.elasticsearch.qa.backwards:2.1:2.2.0'

<dependency>
	<groupId>org.elasticsearch.qa.backwards</groupId>
	<artifactId>2.1</artifactId>
	<version>2.2.0</version>
</dependency>

<dependency org="org.elasticsearch.qa.backwards" name="2.1" rev="2.2.0"/>

"org.elasticsearch.qa.backwards", "2.1", "2.2.0"