[WFLY-3418] Clean out unused var
Make DeploymentManagementTestCase more robust when deployment hashes randomly share the same first 2 chars
Add a utility for installing a deployment that does not require any subsystems
[WFLY-3418] A --backup slave HC should pull down the content from master when executing add deployment op
Merge pull request #6327 from bstansberry/WFLY-3418

[WFLY-3418] A --backup slave HC should pull down the content from master when executing add deployment op