README normalization
Changed package
Prevent JWPlayer JS from aggregating.

If allowed to aggregate, it will likely fail to find associated
resources it requires.
Merge pull request #15 from adam-vessey/7.x-ISLANDORA-960

Prevent JWPlayer JS from aggregating.
Merge pull request #17 from ajstanley/7.x

Changed package
Merge pull request #13 from ruebot/7.x

README normalization