Merge branch 'feature/embedded_fonts' into develop
rendition_leayout property set in package_document  bug fix
dependency update
Added a way to access the original toc url
Merge branch 'develop' of github.com:readium/readium-js into develop
Updated shared js
Merge pull request #7 from ryanackley/develop

Added a way to access the original toc url
Implement Adobe font deobfuscation algorithm specified at:

http://www.adobe.com/content/dam/Adobe/en/devnet/digitalpublishing/pdfs/content_protection.pdf