Exponentcms Exponent CMS → 2.4.2

This issue has likely existed at least since v2.3.7patch3, but possibly longer in some aspect. Here are the issues:
- the new input scrubbing method didn't allow for quotes nor spaces in associative array keys - our patch/not-a-patch logic worked ok for uploaded extensions, but not for pulling them off the exponent site - our theme packages (on the site) weren't packaged appropriately to be uploaded as either a patch or as not-a-patch