Added Cancel button to the Editor

And removed the Show menu pick, which should now be redundant.
Added the Cancel button at the top
Added edit button to the usual title

This should speed workflow -- I've been getting annoyed at having to
pick that from the menu.

Discovered that the Bootstrap Glyphicons weren't working.  Moved them so
they do.
Split menus *mostly* working

Checkpoint, but it's at least functional now.
Split menus now work decently

Look-and-feel could use some work, but they function as desired.