extend the UIMA logging interface to retrieve the root logger
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                 Key: UIMA-751
                 URL: https://issues.apache.org/jira/browse/UIMA-751
             Project: UIMA
          Issue Type: New Feature
          Components: Core Java Framework
    Affects Versions: 2.2.1
            Reporter: Michael Baessler
            Priority: Minor


Currently UIMA applications cannot manipulate the root logger settings only the 
UIMA framework logger (org.apache.uima) settings.
This means that e.g. the CVD or any other application cannot change effectively 
the log level using an API. This only works if within the application 
only components are running the have the same namespace as the UIMA framework 
logger (org.apache.uima). In that case the sub loggers have the 
"org.apache.uima" logger as root logger. But it doesn't work for annotators 
that have another namespace sicne in that case they have another root logger.

With the root logger extension UIMA applications can retrieve the real root 
logger and can manipulate the setting on it. But this should only used if the 
application has full control about the whole JVM. This should not be used if 
the application is integrated into another application that use the same 
logging system.

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