Fix for Clarify fot .src files

Clarify support for .src spec documents
I believe it's not related to clarify fix for .src. Please move this improvement to other branch.

If you collect now all the script tags in one place, how do you separate scripts during injection in case if some of them must be placed on top of the page, and some on the bottom? I'm thinking about this problem right now, refactoring clarify for new api and parser.