This commit is related to:

 LBCLASSIC-61 (configurable ObjectName)
 LBCLASSIC-24 (better error messages after reload)
 LBCLASSIC-33 (JMX configurator unregisters itself)

- Refactoring of LoggerContext class so it has a cleaner lifecycle
- Major refactorization of c.q.l.c.jmx.Configurator (renamed as JMXConfigurator) in order
  to fix the aforementioned bugs
  
  More updates to follow