Update versions of SDK and course wizard being pulled in production requirements file for ext_tools.  Fix for https forwarded header sent by Amazon ELB - change header to X_FORWARDED_PROTO.
Merge pull request #38 from Harvard-University-iCommons/feature/TLT-455_update_version_requirements_for_prod

Update versions of SDK and course wizard being pulled in production requ...
Merge pull request #39 from Harvard-University-iCommons/develop

Develop