Sonar plugins parent

'org.sonarsource.sonar-plugins:parent:21'

<dependency>
	<groupId>org.sonarsource.sonar-plugins</groupId>
	<artifactId>parent</artifactId>
	<version>21</version>
</dependency>

<dependency org="org.sonarsource.sonar-plugins" name="parent" rev="21"/>

"org.sonarsource.sonar-plugins", "parent", "21"