Don't try to create another player object

this is being done by the embed script + templates now.  #player does not even exist.
Correctly update the duration

Remove old references to players
Add tinymce as a submodule
Reference the local copy of tinymce rather than 3.0
Load tinymce when document is ready
Make the media edit form full width
First commit of tinymce submodule
Merge pull request #98 from mfairchild365/media-edit-form

Fix errors with the media edit form