Reviewed code formatting
Avoid direct copy of arrays
Updated API of ILogger

New parameter, indicating the method writing the log
Replaced dependency to Felix HTTP Bundle by Servlet API

Avoids to download a set of bundles to define javax.servlet
Added a bridge to the OSGi LogService

Jabsorb logging system now tries to use the OSGi log service, if
available.
If the service is not available, the Java logging API is used.