#734 Create a cleanup report to find collections/anthologies without contents whose other editions have contents

[Ahasuerus]

Create a cleanup report to find collections/anthologies without contents whose other editions have contents.

[Ahasuerus]

Implemented in:

mod/containers_without_contents.py 1.1
mod/cleanup.py 1.74
mod/TARGETS 1.63
nightly/nightly_update.py 1.65

Installed in r2014-385 on 2014-11-04. Closing.