Optionally control the order of starting services
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                 Key: WHIRR-221
                 URL: https://issues.apache.org/jira/browse/WHIRR-221
             Project: Whirr
          Issue Type: New Feature
          Components: core, documentation
            Reporter: Andrei Savu
             Fix For: 0.4.0


As Lars sugested in WHIRR-170:

The user should "be able to optionally control the order (services start). This 
could be role based and specified like so

{code}
whirr.role-order=zk,nn+jt,dn+tt,hbase-master,hbase-regionserver
{code}

If not specified the system should make any effort to start the services as 
quickly as possible, for example in multiple threads. In other words, when the 
role-order is not given no guarantee about order can be given."

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