Enable editing of metadata on calendar.

Fix how overlay displays.

Add datetime picker functionality.

Fixing some spacing issues.

Added spinners to make things look nice when ajax is required.

Chose a different dom element to bind to that doesn't get erased.

Investigating CSS rendering of single_li elements.

Finalized removal of ajax when subsituting for select elements.

Finalizing inserting selet lists without ajax.

Fix issues with "user" dropdown.
Place pipes within span to provide cleaner looking interface.
Clean up comments and explain functionality differences.
Merge pull request #184 from cojennin/new-editorial-metadata-on-calendar

Edit editorial metadata (and other post data) on calendar