Revision 293479

Resolving: MNG-934, MNG-669

o Changed default value for usePluginRegistry to 'false' in settings.mdo
o Changed default value for updateInterval to 'never' in plugin-registry.mdo
o Added ActivationOS in settings.mdo, profiles.mdo, maven.mdo
o Added code to the conversion utilities for Settings and Profiles to corresponding maven-model classes for ActivationOS
o Added OS activator for profiles which allows architecture, name, family, and version (with '!' negation of any of these)
o Added ActivationFile to settings.mdo, along with conversion code in the Settings->Model conversion utility
o Added packageWithVersion configuration to the modello plugin definition in maven-settings (this is apparently required now)