Update README.md
Get rid of unnecessary SCORM manifest that was causing Engine to
import prototype as SCORM 1.2 content.
Merge pull request #26 from RusticiSoftware/tfo/improvement-rm-imsmanifest

Remove Unnecessary SCORM Manifest Causing Engine to Interpret Package as SCORM
Bump TinCanJS submodule
Set completion status in the response object.
Bump submodules.
Merge pull request #28 from RusticiSoftware/jim/golf_completion

Bumps to submodules