[ARQ-1776] Make class KarafManagedDeployableContainer compatible with OSGi...

Changes:
- OSGi MBeans use only methods compatible with [OSGi API 4.2](http://www.osgi.org/javadoc/r4v42/org/osgi/jmx/framework/package-summary.html) for backward compatibility now.
- Container property **bootstrapCompleteService** can contain more services delimited by comma.