Revert "Merge pull request #688 from Graylog2/revert-675-jersey-2.11"
Move ServiceLocatorGenerator into graylo2-{radio,server}

Technically the service file for org.glassfish.hk2.extension.ServiceLocatorGenerator
belongs into graylog2-shared but IntelliJ won't start the applications correctly and
thus they fail to run with the custom Graylog2ServiceLocatorGenerator.
Merge pull request #691 from Graylog2/jersey-2.11

Upgrade to Jersey 2.11 and HK2 2.3.0-b10 (with a vengeance)