push error handling into utils/vm_control
push the raised exception up the chain
push exit code from system call up through systest.rb
Merge pull request #457 from anodelman/red-on-fail

(#20930) fix jenkins green on failure bug
(#20863) removes host file generation from --preserve-hosts option
(maint) add new cfg for PuppetDB perf testing
Merge branch 'master' of github.com:puppetlabs/puppet-acceptance
Merge pull request #458 from anodelman/remove-preserve-hosts-file

(#20863) removes host file generation from --preserve-hosts option
Merge branch 'master' into ec2-config-to-lib

Conflicts:
	lib/puppet_acceptance/cli.rb