XD-469 Upgrading to spring-data-hadoop 1.0.1.RC1
Fixing some inconsistencies in commands help + added test on those + added ability to generate Shell reference in doco build
XD-478 Add Accepted Mediatype Support in Module
XD-493 Refactor resource deployers

Pulled methods up into new AbstractDeployer base class to remove
duplication.

Replaced specific message sender classes for each deployment type
with a single DeploymentMessageSender, since the code appeared to
be identical in each case.