Export fewer globals from gorgon.js
Export fewer globals from gorgon.js

Summary:
I've got a pending patch for webapp/tools/gorgon.js that needs fewer
exports, so this Perseus patch reduces what we export.

Reviewers: scottgrant

Reviewed By: scottgrant

Subscribers: tom, jared

Differential Revision: https://phabricator.khanacademy.org/D37189

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