Cannot stop component or its services and references if one of them fails to 
start
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                 Key: TUSCANY-3466
                 URL: https://issues.apache.org/jira/browse/TUSCANY-3466
             Project: Tuscany
          Issue Type: Bug
    Affects Versions: Java-SCA-1.5
            Reporter: Greg Dritschler
            Priority: Minor


CompositeActivator.start(Component) starts the component services, references, 
and the component itself via their providers.  If all of the providers complete 
successfully, it sets a flag in the component that it has started.

If one of the providers encounters a problem and throws an exception, then the 
'started' flag in the component flag won't be set.  When 
CompositeActivator.stop(Component) is called, it first checks if the component 
'started' flag is on.  If not, it returns without doing anything.  This means 
that providers that DID start successfully are not called to perform stop 
processing.  This leaves these providers in an incorrect state, and may prevent 
the provider from successfully starting subsequent times.

CompositeActivator.stop(Component) needs to handle the providers that were 
started and only skip those that weren't started.

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