Also, there were some issues with policy:
* 'publicize_image' instead of 'publicize_package';
* corresponding actions have different names;
* user could not upload packages by default;
* user could mark package public/unpublic;
* user could delete pablic packages.
Change-Id: I5459016a4e7401b58fcb343e40d0047a4959b7df
Closes-Bug: #1439240
Closes-Bug: #1436289