Revert "Try zc.buildout version upgrade"
Revert "Try zc.buildout version upgrade"

This reverts commit 2a55640858ae239398c356edfd28fa86a9d34cf7.

4dn-dcic/fourfront,hms-dbmi/fourfront,hms-dbmi/fourfront,4dn-dcic/fourfront,hms-dbmi/fourfront,4dn-dcic/fourfront,hms-dbmi/fourfront,hms-dbmi/fourfront,4dn-dcic/fourfront