Fix FELIX-2781 Expose the implementation class as service when no interfaces are found in the hierachyUpdate the changelogAdd tests to check FELIX-2781
Fix FELIX-2705 Provide a way to extend the logger strategyDefine a new ErrorHandler service interface. The iPOJO logger invokes this services when a warning or an error is thrown.Also generalize the usage of the loggerAdd tests about FELIX-2705 and re-enable logger tests.
Fix FELIX-2694 Instance state not recomputed after reconfiguration when the instance is stoppedWhen the instance is stopped, after the reconfiguration the instance is restarted.
