XD-1665 - Update to snapshot builds of Spring Shell
XD-1664 Remove singlenode prefix on a property

- Remove singlenode prefix from `embeddedHsql` property key
  - Fix property usages in `application.yml`, `servers.yml`
XD-1503 Module Deployment rework

Removed ModuleDescriptor that was brought over from
the xdzk prototype.

Renamed ModuleDeploymentRequest to ModuleDescriptor.
XD-1430 JMS Acceptance Tests
Removed pushConfigToContainer for JMS Test

* This is unnecessary since the environment variable should be used and is already setup by XD-EC2.
* Rebased against master.