FLOE-215: Update the manifest and SMIL file
FLOE-215: Updating the audio and smil for the media overlay
FLOE-215: Add some sequence information to the media overlay SMIL.
Merge pull request #4 from acheetham/FLOE-215

FLOE-215: Update the media overlay
Merge branch 'master' into FLOE-216

Conflicts:
	physics-forces_and_motion/Content/package.opf