Merge changes I3d68dbf8,I6ea524bb,I978d9119

* changes:
  Deprecate CONNECTIVITY_ACTION.
  Publish FOREGROUND and add NOT_SUSPENDED capabilities.
  Send null UIDs to apps instead of single-uid lists.
tree: c388c62d8bcda2b008bd143b43ead38246867874
  1. core/
  2. services/
  3. tests/