jwplayer integration.
Updating sherdjs with mp4_audio / jwplayer swap.
jwplayer for mp4_audio
Merge pull request #69 from ccnmtl/streaming

Streaming
update sherd.js
https://github.com/ccnmtl/SherdJS/commit/e22e75dc60004e655b94fc9845cd69416a63be0a
Merge pull request #70 from ccnmtl/streaming

update sherd.js
just a note on limiting selection visibility
adding new sherdjs
Merge branch 'master' of github.com:ccnmtl/mediathread into spring2015
upgrading sherdjs
tinymce upgrade.