FELIX-3780 - allow DA to be configured by ConfigAdmin:

- register the DA implementation also as managed service with PID
  "org.apache.felix.deploymentadmin";
- it accepts a single property "stopUnaffectedBundle" which should
  be "true" or "false";
- when no configuration is supplied, the fallback is to use the old
  framework/system property: 
  "org.apache.felix.deploymentadmin.stopunaffectedbundle".



git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1588290 13f79535-47bb-0310-9956-ffa450edef68