Fix py2app build
Fix py2app build

py2app’s packages parameter is not the same as setuptools. Setuptools
wants packages and sub-packages whereas py2app’s wants only top-level
packages.

Signed-off-by: Ethan White <0a27e12d062ad71673d57f9c2799b207af316885@weecology.org>

henrykironde/deletedret,davharris/retriever,davharris/retriever,goelakash/retriever,embaldridge/retriever,davharris/retriever,henrykironde/deletedret,embaldridge/retriever,bendmorris/retriever,bendmorris/retriever,embaldridge/retriever,goelakash/retriever,bendmorris/retriever