Add Guava 18 to shaded libs

PR #43

Add mantis-shaded subproject for shading dependencies

PR #42

The mantis-shaded subproject uses the shadow plugin to relocate dependent classes. We updated imports to reference the shaded versions of those classes.

Update Mesos Java Lib dependency for Agents

See PR message from #41

Remove Akka dependencies

Picks up latest mantis-control-plane-core which has removed akka and scala dependencies

Set Jackson Version to 2.10.+

Set Jackson version to 2.10.+

Reduce metric volume

Optimize the metric volume generated by SSE connections

Minor release

Remove unused gauges from DropOperator

Better validation for `WorkerPorts`

This release makes it easy for consumers of WorkerPorts to fail out on preconditions which aren't met. This particularly helps the Mantis Master in the mantis-control-plane perform resubmit (or prevent submitting in the first place) of bad workers.

v1.2.32

This release adds validation to WorkerPorts which is used by Mantis Master to give it the chance to fail out a worker on a precondition during initialization.

Upgrade Mesos to 1.3.2

This release upgrades the Mantis runtime to Mesos 1.3.2.