As of v160618, the Lite release built by Phing includes several Pro-only files:

src/includes/classes/UtilsRve.php
src/vendor/lusitanian/
src/vendor/mailchimp/

And possibly some others.

We need to do a more thorough review than what was done in #237 and make sure that we have stripped any dependencies from the Lite codebase (i.e., placed the appropriate Pro-only markers in the codebase). A full round of tests of the Lite version will then need to be conducted while watching the error log.