QA: BWC: Shared

Code and tools shared by backwards compatibility tests

'org.elasticsearch.qa.backwards:shared:2.1.2'

<dependency>
	<groupId>org.elasticsearch.qa.backwards</groupId>
	<artifactId>shared</artifactId>
	<version>2.1.2</version>
</dependency>

<dependency org="org.elasticsearch.qa.backwards" name="shared" rev="2.1.2"/>

"org.elasticsearch.qa.backwards", "shared", "2.1.2"

Dependencies