Revision 1220723

FELIX-2117 Reduce the static dependencies
  - Import most Compendium services dynamically
    (still require Http, Startlevel, and PackageAdmin)
  - Embed Metatype service package and import optionally
    (allows to synthesize descriptors but still use imported
    package if available)
  - Make sure existing factory configurations are displayed even
    in the absence of a Metatype service